18 years of Jesus’ life are not recorded in Scripture. Common sense would tell one that the Son of God, although not yet in His public ministry must have said or done at least one remarkable thing. Is it in the Bible? No. But Jesus did not live in a cocoon, or suspended animation all those years. Think about it: He had to be the best-behaved kid in the village, being incapable of sin. He grew in stature in the eyes of God and men, did He not?
As a prophet, He was not accepted in His own country, a statement which He chose as a generalization for the Prophets, not just Himself. If it’s not in the Bible, them it didn’t happen? I don’t think so.