John Gill 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)

And the Lord looked upon him
The same before called the angel of the Lord, and who was no other than Jehovah himself; who looked upon him with great earnestness, and with great delight and pleasure smiled upon him, and thereby showing he had a kindness for him, and meant well to him: and

said unto him, go in this your might ;
both of body and mind, which had been before given unto him, and was now increased, and which no doubt Gideon was sensible of:

and you shall save Israel from the hand of the Midianites ;
as he did, and therefore justly reckoned among the saviours and judges of Israel:

have not I sent you ?
to do this great work, save the people of Israel, from whence Gideon might perceive who it was that talked with him, and having a command and commission from God, had authority enough to go about this service.