Judges 6:23

And the Lord said unto him
Either by a secret impulse upon his spirit, or by a voice from heaven; and even, as Kimchi observes, the angel, after he ascended, might cause this voice to be heard, seeing him in great fear, because he knew he was an angel; and which is another proof of this angel being Jehovah himself, the eternal Word:

peace be unto thee, fear not, thou shall not die;
let not thy mind be ruffled and disturbed, but serene and calm; fear not that any evil shall befall thee, and particularly death; thou shall be safe from any danger whatever, and especially from death, which he expected in his flight would immediately follow.