'Taught' in the Bible

This is the John who taught the truth concerning the Word of God and the truth told us by Jesus Christ-- a faithful account of what he had seen.

Yet I have a few things against you, because you have with you some that cling to the teaching of Balaam, who taught Balak to put a stumbling-block in the way of the descendants of Israel--to eat what had been sacrificed to idols, and commit fornication.