Initially Jesus commands his twelve disciples to preach the kingdom of God, but with very particular instructions (which later He reverses).
“Then He called His twelve disciples together and gave them power and authority over all demons, and to cure diseases. He sent them to preach the kingdom of God and to heal the sick. And He said to them, “Take nothing for the journey, neither staffs nor bag nor bread nor money; and do not have two tunics apiece. “Whatever house you enter, stay there, and from there depart. And whoever will not receive you, when you go out of that city, shake off the very dust from your feet as a testimony against them.” So they departed and went through the towns, preaching the gospel and healing everywhere.” Luke 9:1-6
He then delegates seventy more disciples to do likewise but again it seems confined to cities and towns.
“Then He said to them, “The harvest truly is great, but the laborers are few; therefore pray the Lord of the harvest to send out laborers into His harvest. Go your way; behold, I send you out as lambs among wolves. Carry neither money bag, knapsack, nor sandals; and greet no one along the road.” Luke 10:2-4
And later this changes
“And He said to them, “When I sent you without money bag, knapsack, and sandals, did you lack anything?” So they said, “Nothing.” Then He said to them, “But now, he who has a money bag, let him take it, and likewise a knapsack; and he who has no sword, let him sell his garment and buy one.” Luke 22:35-36
What changed? What changed that now offensive weapons need to be carried? Does it have anything to do with a new mandate?
“And this gospel of the kingdom will be preached in all the world as a witness to all the nations, and then the end will come.” Matthew 24:14
and in Mark
“And He said to them, “Go into all the world and preach the gospel to every creature.” Mark 16:15
Because prior He says
“These twelve Jesus sent out and commanded them, saying: “Do not go into the way of the Gentiles, and do not enter a city of the Samaritans. But go rather to the lost sheep of the house of Israel.” Matthew 10:5-6
What changed or what demarcation caused the change?
We have Jesus refusing Gentiles
“But He answered and said, “I was not sent except to the lost sheep of the house of Israel.”” Matthew 15:24
Now all of a sudden the door is open to the Gentiles. Did He always have this in mind?
“And other sheep I have which are not of this fold; them also I must bring, and they will hear My voice; and there will be one flock and one shepherd.” John 10:16
What caused the change, given the instructions of change take place before His crucifixion.