'Convinced' in the Bible

After Eglon convinced the Ammonites and the Amalekites to join forces with him, he attacked and defeated Israel and took possession of the City of Palms.

Achish answered David, “I’m convinced that you are as reliable as the Angel of God. But the Philistine commanders have said, ‘He must not go into battle with us.’

On that day all the troops and all Israel were convinced that the king had no part in the killing of Abner son of Ner.