Mark 6:2
"And when the sabbath day was come, he began to teach in the synagogue: and many hearing him were astonished, saying, From whence hath this man these things? and what wisdom is this which is given unto him, that even such mighty works are wrought by his hands?"
Cross References (ranked by relevance)
And they said, Is not this Jesus, the son of Joseph, whose father and mother we know? how is it then that he saith, I came down from heaven?
And the Jews marvelled, saying, How knoweth this man letters, having never learned?
And Jesus went about all Galilee, teaching in their synagogues, and preaching the gospel of the kingdom, and healing all manner of sickness and all manner of disease among the people.
And he taught in their synagogues, being glorified of all.
And it came to pass, when Jesus had ended these sayings, the people were astonished at his doctrine:
And he preached in their synagogues throughout all Galilee, and cast out devils.