'Preaching' in the Bible

John the Baptist appeared in the wilderness preaching a baptism of repentance for the forgiveness of sins.

And he was preaching, and saying, “After me One is coming who is mightier than I, and I am not fit to stoop down and untie the thong of His sandals.

Now after John had been taken into custody, Jesus came into Galilee, preaching the gospel of God,

And He went into their synagogues throughout all Galilee, preaching and casting out the demons.