John Gill Commentary Judges 13:22

"And Manoah said unto his wife, We shall surely die, because we have seen God." — Judges 13:22 (ASV)

And Manoah said to his wife
Being risen from the ground, where they fell on their faces:

we shall surely die, because we have seen God
by which it appears that he not only believed him to be an angel, and not a man, but a divine Person; for though angels are sometimes called "Elohim", the word here used, yet good men were not wont to fear death, or conclude they should die on sight of an angel; but their notion was, that an appearance of God to them was death, and were surprised when it did not follow, (Genesis 32:30) (Judges 6:22Judges 6:23) (Exodus 33:20) .