Then the LORD said to him, “Peace [be] with you; do not fear, you shall not die.” So Gideon built an altar there to the LORD, and called it The-LORD-[Is]-Peace. Judges 6:23-24 (NKJV)
The Lord appeared to Gideon as an angel – Judges 6:11-22. In the Old Testament God would appear to people as a man, angel, burning bush, pillar of fire or cloud. Here we know that this Angel of the Lord was the Lord Himself because in verses 14,16,23 this same person is called the Lord.Gideon was afraid that he was going to die because He had seen the Angel of the Lord. But the Lord said to him “Peace”.This is the same Lord Jesus Christ who is our Peace – Ephesians 2:14. He has come and preached Peace to us through the Cross – Ephesians 2:17.To believe in the Lord Jesus Christ is how we receive peace. To follow Him is how we live in peace.