I am thinking that Ephesians 5:14 is coming from Jonah 1:6.
Ephesians 5:14 KJV (14) Wherefore he saith, Awake thou that sleepest,
and arise from the dead, and Christ shall give thee light.*
As we know, Jonah had fallen “fast asleep” in the sides of the ship…
Jonah 1:5-6 KJV (5) Then the mariners were afraid, and cried every
man unto his god, and cast forth the wares that were in the ship into
the sea, to lighten it of them. But Jonah was gone down into the sides
of the ship; and he lay, and was fast asleep.*
….and was called by the shipmaster to awaken from his sleep: O sleeper, ARISE and call upon your God so that God would “think”….that is, “shine”….upon us that we perish not. Think =shine.
(6) So the shipmaster came to him, and said unto him, What meanest
thou, O sleeper? arise, call upon thy God, if so be that God will
think upon us, that we perish not.
God’s Light shines in our hearts to give the Light of the knowledge of the glory of God in the face of Jesus Christ as we show we know Him (seeing His face so to speak = knowing Him) by doing what He commanded to do: have love for one another.
2 Corinthians 4:6 KJV (6) For God, who commanded the light to shine
out of darkness, hath shined in our hearts, to give the light of the
knowledge of the glory of God in the face of Jesus Christ.
In order to enter in to the understanding of His knowledge (as He opens up the Scriptures to our hearing ears), we must “awake out of sleep” (awake from the forgetfulness to do His command and remember to have love for another ) and cast off the works of darkness (the wrath, the envy and strife, etc). We show we know Him (His face) by doing His will.
Romans 13:10-14 KJV (10) Love worketh no ill to his neighbour:
therefore love is the fulfilling of the law. (11) And that, knowing
the time, that now it is high time to awake out of sleep: for now is
our salvation nearer than when we believed. (12) The night is far
spent, the day is at hand: let us therefore cast off the works of
darkness, and let us put on the armour of light. (13) Let us walk
honestly, as in the day; not in rioting and drunkenness, not in
chambering and wantonness, not in strife and envying.
We must hear what the Spirit says and put off the old man and his corrupt behavior (the envying, fighting, strife, wrath) and put on the Lord Jesus Christ and not think to fulfill the lusts to contradict and berate (making provision for the flesh) just because it does not conform to our own interpretation.
(14) But put ye on the Lord Jesus Christ, and make not provision for
the flesh, to fulfil the lusts thereof.
If any man would “will” to do His will, then they shall know of the teaching (the opening up of the Scriptures to our ears via the Spirit of Truth) whether it be of God or whether one speaks of himself. The Light shall shine within our very hearts if we do His will and know that what we hear is from above.
John 7:16-19 KJV (16) Jesus answered them, and said, My doctrine is
not mine, but his that sent me. (17) If any man will do his will, he
shall know of the doctrine, whether it be of God, or whether I speak
Some will seek to contradict the things in their wrath (of what they hear) as they seek their own glory: wanting to be seen as wise. Those who do unrighteousness are not of God as they go about seeking to “kill the messenger” who speaks what they hear the Spirit of God saying. They are called to “awake” out of sleep and cast off the works of darkness.
(18) He that speaketh of himself seeketh his own glory: but he that
seeketh his glory that sent him, the same is true, and no
unrighteousness is in him. (19) Did not Moses give you the law, and
yet none of you keepeth the law? Why go ye about to kill me?