1 Samuel 10:6-9 ESV Then the Spirit of the Lord will rush upon you, and you will prophesy with them and be turned into another man….  When he turned his back to leave Samuel, God gave him another heart…

Saul was a tall, impressive man, but he was a coward.  However, when the Spirit of God came upon him, he was changed. And changed mightily.

Let us not underestimate what the Lord can and will do in us and in any other brother we know.