His teachings and the fact that He was asked / allowed to read and speak in synagogues. (ran by the Pharisees)
John 7 Now about the middle of the feast Jesus went up into the temple, and taught.
And the Jews marveled, saying, How knows this man letters, having never learned? Jesus
answered them, and said, My doctrine is not mine, but his that sent me. If any man will do his will, he shall know of the doctrine, whether it be of God, or whether I speak of myself. He that speaks of himself seeks his own glory: but he that seeks his glory that sent him, the same is true, and no unrighteousness is in him.
Matthew 7 And it came to pass, when Jesus had ended these sayings,
the people were astonished at his doctrine:
For he taught them as one having authority, and not as the scribes.
Matthew 13 And when he was come into his own country
, he taught them in their synagogue, so that they were astonished, and said, From where has this man this wisdom, and these mighty works? Is not this the carpenter’s son? is not his mother called Mary? and his brothers, James, and Joses, and Simon, and Judas? And his sisters, are they not all with us?
From where then has this man all these things? And they were offended in him. But Jesus said to them, A prophet is not without honor, save in his own country, and in his own house. And he did not many mighty works there because of their unbelief.
Mark 6 And he went out from there, and came into his own country; and his disciples follow him. And when the sabbath day was come,
he began to teach in the synagogue: and many hearing him were astonished, saying, From where has this man these things? and what wisdom is this which is given to him, that even such mighty works are worked by his hands? Is not this the carpenter, the son of Mary, the brother of James, and Joses, and of Juda, and Simon? and are not his sisters here with us?
And they were offended at him. But Jesus, said to them, A prophet is not without honor, but in his own country, and among his own kin, and in his own house. And he could there do no mighty work, save that he laid his hands on a few sick, and healed them. And he marveled because of their unbelief. And he went round about the villages, teaching.
Mark 11:18
And the scribes and chief priests heard it, and sought how they might destroy him: for they feared him, because all the people were astonished at his doctrine.
Luke 4:32
And they were astonished at his doctrine: for his word was with power.
John 7:15 And the Jews marveled, saying,
How knows this man letters, having never learned?