Albert Barnes Commentary Judges 6:14

"And Jehovah looked upon him, and said, Go in this thy might, and save Israel from the hand of Midian: have not I sent thee?" — Judges 6:14 (ASV)

The Lord looked upon him - That gracious look conferred immediate strength (2 Corinthians 12:9; John 20:22; Acts 3:6). The change of phrase from “the angel of the Lord” to “the Lord” is remarkable. When messages are delivered by the Angel of the Lord, the form of the message is as if God Himself were speaking .

The sending implied a valid commission and sufficient powers. Compare to Exodus 3:10; Isaiah 44:26; Ezekiel 2:3; Zechariah 2:11; Malachi 3:1; Luke 10:3; John 20:21; and the term APOSTLE, as applied to our Lord (Hebrews 3:1) and to the Twelve.