Let us start at the beginning to understand. When God was on the mountain he gave to Moses the Ten Commandments (Exodus 20:1-17 NKJV).
The people where scared to hear these Commandments.
Now all the people witnessed the thunderings, the lightning flashes, the sound of the trumpet, and the mountain smoking; and when the people saw it, they trembled and stood afar off. 19 Then they said to Moses, “You speak with us, and we will hear; but let not God speak with us, lest we die.” (Exodus 20:18-19 NKJV)
So God Promised to Raise a Prophet to Teach these Commandments.
“The Lord your God will raise up for you a Prophet like me from your midst, from your brethren. Him you shall hear, 16 according to all you desired of the Lord your God in Horeb in the day of the assembly, saying, ‘Let me not hear again the voice of the Lord my God, nor let me see this great fire anymore, lest I die.’
17 “And the Lord said to me: ‘What they have spoken is good. 18 I will raise up for them a Prophet like you from among their brethren, and will put My words in His mouth, and He shall speak to them all that I command Him. 19 And it shall be that whoever will not hear My words, which He speaks in My name, I will require it of him. 20 But the prophet who presumes to speak a word in My name, which I have not commanded him to speak, or who speaks in the name of other gods, that prophet shall die.’ 21 And if you say in your heart, ‘How shall we know the word which the Lord has not spoken?’— 22 when a prophet speaks in the name of the Lord, if the thing does not happen or come to pass, that is the thing which the Lord has not spoken; the prophet has spoken it presumptuously; you shall not be afraid of him. (Deuteronomy 18:15-22 NKJV)
God desired to fix the problem created from the fruit of the Knowledge of Function and Dysfunction.
but of the tree of the knowledge of good and evil you shall not eat, for in the day that you eat of it you shall surely die.” (Genesis 2:17 NKJV)
He Explains the Way to Life, and the Way of Death
if you obey the voice of the Lord your God, to keep His commandments and His statutes which are written in this Book of the Law, and if you turn to the Lord your God with all your heart and with all your soul.
11 “For this commandment which I command you today is not too mysterious for you, nor is it far off. 12 It is not in heaven, that you should say, ‘Who will ascend into heaven for us and bring it to us, that we may hear it and do it?’ 13 Nor is it beyond the sea, that you should say, ‘Who will go over the sea for us and bring it to us, that we may hear it and do it?’ 14 But the word is very near you, in your mouth and in your heart, that you may do it.
15 “See, I have set before you today life and good, death and evil, 16 in that I command you today to love the Lord your God, to walk in His ways, and to keep His commandments, His statutes, and His judgments, that you may live and multiply; and the Lord your God will bless you in the land which you go to possess. 17 But if your heart turns away so that you do not hear, and are drawn away, and worship other gods and serve them, 18 I announce to you today that you shall surely perish; you shall not prolong your days in the land which you cross over the Jordan to go in and possess. 19 I call heaven and earth as witnesses today against you, that I have set before you life and death, blessing and cursing; therefore choose life, that both you and your descendants may live; 20 that you may love the Lord your God, that you may obey His voice, and that you may cling to Him, for He is your life and the length of your days; and that you may dwell in the land which the Lord swore to your fathers, to Abraham, Isaac, and Jacob, to give them.” (Deuteronomy 30:10-20 NKJV)
The Israelites Failed to Follow the Commandments by Worshiping Other Gods
For so it was that the children of Israel had sinned against the Lord their God, who had brought them up out of the land of Egypt, from under the hand of Pharaoh king of Egypt; and they had feared other gods (2 Kings 17:7 NKJV)
Note: There is context to 2 Kings 17:7, yet there are many examples, I just pick this one to show that it occurred.
The question for Eternal Life was Directly asked to Jesus.
Now behold, one came and said to Him, “Good Teacher, what good thing shall I do that I may have eternal life?” (Matthew 19:16 NKJV)
The answer to the question was to Keep the Commandments
So He said to him, “Why do you call Me good? No one is good but One, that is, God. But if you want to enter into life, keep the commandments.” (Matthew 19:17 NKJV)
He said to Him, “Which ones?”
Jesus said, “‘You shall not murder,’ ‘You shall not commit adultery,’ ‘You shall not steal,’ ‘You shall not bear false witness,’ 19 ‘Honor your father and your mother,’ and, ‘You shall love your neighbor as yourself.’ (Matthew 19:18-19 NKJV)
We can see from the list that he mentions the Ten Commandments
It should be noticed though, that not all ten was listed! He listed only Five of the Ten!
The Young Man Responds
The young man said to Him, “All these things I have kept from my youth. What do I still lack?” (Matthew 19:20 NKJV)
Here comes the Summary of the Remaining Ten Commandments
Jesus said to him, “If you want to be perfect, go, sell what you have and give to the poor, and you will have treasure in heaven; and come, follow Me.” (Matthew 19:21 NKJV)
The Error Made by the Rich Man
When he hears "sell what you have", he thought of things as his possessions, neither did he understand what it means to have "treasure in heaven" So he leaves sad. (Ref: Matthew 19:22 NKJV)
Let us Understand the Light
Let us take this summary and compare it to his other teachings to understand what he means. Because he taught to them in parables.
And the disciples came and said to Him, “Why do You speak to them in parables?”
11 He answered and said to them, “Because it has been given to you to know the mysteries of the kingdom of heaven, but to them it has not been given. 12 For whoever has, to him more will be given, and he will have abundance; but whoever does not have, even what he has will be taken away from him. 13 Therefore I speak to them in parables, because seeing they do not see, and hearing they do not hear, nor do they understand. 14 And in them the prophecy of Isaiah is fulfilled, which says:
‘Hearing you will hear and shall not understand, And seeing you will see and not perceive; 15 For the hearts of this people have grown dull. Their ears are hard of hearing, And their eyes they have closed, Lest they should see with their eyes and hear with their ears, Lest they should understand with their hearts and turn, So that I should heal them.’ (Matthew 13:10-15)
From that Passage we can clearly see that the requirement to being healed is to see, hear, and understand
Where is Heaven? It is Inside you.
nor will they say, ‘See here!’ or ‘See there!’ For indeed, the kingdom of God is within you.” (Luke 17:21 NKJV)
So to have treasure in Heaven
The treasure needs to get inside you.
The Parable of the Sower
Jesus explains to us that their are four situations that our minds can be in. He labels them as "The Wayside", "The Stoney Ground", "The Thorny Ground", and "The Good Ground". To Hear how he explains it Read without the analogies read it here.
Now if you study the Hebrew Hieroglyphs you will learn the true meaning to the first commandment. For the Hieroglyphs work like a story. I will quickly try to explain it to you, I hope to add more references later if you want a deeper study on it. Of all your memories you can think of all of your knowledge as a sea. And you can think of each person also this way, as each person having their own sea of knowledge. Now when you decide to speak this water comes out metaphorically.
Again Jesus uses another analogy, this time he calls it the "Water of Life".
On the last day, that great day of the feast, Jesus stood and cried out, saying, “If anyone thirsts, let him come to Me and drink. 38 He who believes in Me, as the Scripture has said, out of his heart will flow rivers of living water. (John 7:37-38 NKJV)
Now the breath of truth when it is working allows for no distraction. If you remain in the water you are in the light. If you break the water and place your attention on anything even like it. You break the commandment, and live in the darkness. Therefore selling everything you own, is in relations to your thoughts, and to give all of your attention to the one speaking to you.
Jesus explains this harvesting of the truth as a garden.
In the Parable of Weeds, both Good and Bad are sown into the Garden (you). And instead of picking what is wrong. Then entire speech was first listened to, then the bad was thrown away, and the Good was gathered into your memory.
Jesus again explains this sorting after all is gathered Like Fishing
which, when it was full, they drew to shore; and they sat down and gathered the good into vessels, but threw the bad away. (Matthew 13:48 NKJV)
In conversation it is greater to be last.
But many who are first will be last, and the last first. (Matthew 19:30 NKJV)
The One Who Listens Gains Everlasting Life
And he who reaps receives wages, and gathers fruit for eternal life, that both he who sows and he who reaps may rejoice together. (John 4:36 NKJV)
The Example of Mary Doing it Right
But one thing is needed, and Mary has chosen that good part, which will not be taken away from her. (Luke 10:42 NKJV)
What was she doing? Listening to his Word
And she had a sister called Mary, who also sat at Jesus’ feet and heard His word. (Luke 10:39 NKJV)
Those that are in the Darkness do not understand how to listen. For they do not know how to have communion with the light. The eyes become distracted when the one talking is speaking, and the focus of the mind goes to something else. Leaving the words being spoken to them.
The Works of the Darkness
Therefore let us cast off the works of darkness, and let us put on the armor of light. 13 Let us walk properly, as in the day, not in revelry and drunkenness, not in lewdness and lust, not in strife and envy. (Romans 13:12-13 NKJV)
This I say, therefore, and testify in the Lord, that you should no longer walk as the rest of the Gentiles walk, in the futility of their mind, 18 having their understanding darkened, being alienated from the life of God, because of the ignorance that is in them, because of the blindness of their heart; 19 who, being past feeling, have given themselves over to lewdness, to work all uncleanness with greediness. (Ephesians 4:17-19 NKJV)
Being alienated from the life of God
If we do not listen to the one talking to us we are in darkness.
However once you begin to harvest from the one that is speaking
But Jesus said to him, “No one, having put his hand to the plow, and looking back, is fit for the kingdom of God.” (Luke 9:62 NKJV)
Nothing can be more important the the words that are coming at you!
He who loves father or mother more than Me is not worthy of Me. And he who loves son or daughter more than Me is not worthy of Me. (Matthew 10:37 NKJV)
How important is this teaching?
And this is the condemnation, that the light has come into the world, and men loved darkness rather than light, because their deeds were evil. 20 For everyone practicing evil hates the light and does not come to the light, lest his deeds should be exposed. 21 But he who does the truth comes to the light, that his deeds may be clearly seen, that they have been done in God.” (John 3:19-21 NKJV)
Another way to say 1 John 1:6
If we say that we have fellowship with Him, and walk in darkness, we lie and do not practice the truth. (1 John 1:6 NKJV)
If I say that I am listening to you, yet am focused on something else altogether, I lie and do not practice the truth.
To Walk in Darkness Means: To focus on something else besides the words being spoken to you.
What are we to do about the darkness?
And have no fellowship with the unfruitful works of darkness, but rather expose them. 12 For it is shameful even to speak of those things which are done by them in secret. 13 But all things that are exposed are made manifest by the light, for whatever makes manifest is light. 14 Therefore He says: “Awake, you who sleep, Arise from the dead, And Christ will give you light.” (Ephesians 5:11-14)
Quit ignoring the one speaking to you, expose yourself to the light. It is shameful to even speak about the secret thing you do when you do not pay attention. However you become visible when your exposed by the light. So awaken from your living in the dying darkness and let the Word give you Light!
One more way to explain just for good measure
The lamp of the body is the eye. If therefore your eye is good, your whole body will be full of light. (Matthew 6:22 NKJV)
The word for Good (ἁπλοῦς) means "Unfolded". So if your attention is Unfolded you are in the Light. If your attention is Folded you are in the Darkness.
But if your eye is bad, your whole body will be full of darkness. If therefore the light that is in you is darkness, how great is that darkness! (Matthew 6:23 NKJV)
The word for Bad (πονηρὸς) means "pain-ridden" from a root meaning "laborious". A folded mind is pain-ridden from labor. So a sign that you are in the darkness, is a head ache.
Now you can clearly understand this
Then He said to them, “Why do you sleep? Rise and pray, lest you enter into temptation.” (Luke 22:46 NKJV)
While Jesus was gone their conversation died away. So he suggests to them to continue asking questions to prevent entering into temptation.
Prayer and Fasting
So He said to them, “This kind can come out by nothing but prayer and fasting.” (Mark 9:29 NKJV)
To explain how he drove the demon out, he did it by asking questions, and fasting from the world. Nothing took his attention away from the light. Therefore the Light did the healing. And Jesus remained in God's Light.
For some bible study time, if you would like to research times when Jesus says "into outer darkness, where there will be weeping and gnashing of teeth". The Teacher himself can explain the rest to you.