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.
The Brenton translation of the Septuagint is in the public domain.