but instructed them not to tell people who he was.
This fulfilled what Isaiah the prophet said:
As they descended the mountain Jesus gave them strict instructions. “Don't tell anybody what you saw until the Son of man has risen from the dead,” he told them.
“Make sure you don't tell anyone,” Jesus told him. “Go and show yourself to the priest and give the offering which Moses required as public proof.”
And they could see. Then Jesus warned them, “Make sure nobody knows about this.”
Meanwhile Jesus returned to the Sea, and a large crowd followed him. They were from Galilee, Judea,
Jesus gave them strict orders not to tell anyone, but the more he said this, the more they spread the news.