Contradiction with Matthew 10:5
Jesus instructs the disciples not to go to the Gentiles, contradicting Luke 9:6 where they preach the gospel to all.
Matthew 10:5: These twelve Jesus sent forth, and commanded them, saying, Go not into the way of the Gentiles, and into [any] city of the Samaritans enter ye not:
Contradiction with Matthew 10:23
Jesus tells the disciples to flee if persecuted, while in Luke 9:6, they are actively traveling and preaching despite potential challenges.
Matthew 10:23: But when they persecute you in this city, flee ye into another: for verily I say unto you, Ye shall not have gone over the cities of Israel, till the Son of man be come. [have...: or, end, or, finish]
Contradiction with Mark 6:8-9
The disciples are instructed to take nothing for their journey except a staff, contradicting Luke 9:6 where the method of carrying is not specified, implying readiness with provisions.
Mark 6:8-9: And commanded them that they should take nothing for [their] journey, save a staff only; no scrip, no bread, no money in [their] purse: [money: the word signifieth a piece of brass money, in value somewhat less than a farthing, but here it is taken in general for money]
Contradiction with Acts 16:6
The Holy Spirit prevents them from preaching in Asia, which contrasts with Luke 9:6 where they freely preach everywhere.
Acts 16:6: Now when they had gone throughout Phrygia and the region of Galatia, and were forbidden of the Holy Ghost to preach the word in Asia,
Contradiction with John 7:1
Jesus avoids Judea to escape the Jews, contradicting the persistent preaching and movement in Luke 9:6.
John 7:1: After these things Jesus walked in Galilee: for he would not walk in Jewry, because the Jews sought to kill him.