For destruction from God was a terror to me. I could not, i.e; have acted in the way charged against me by Eliphaz, since I was always God-fearing, and should have been deterred, if by nothing else, at any rate by dread of the Divine vengeance.
And by reason of his highness I could not endure. God's majesty and excellency are such that I could not have had the face to resist them. If! had begun such a course of life as Eliphaz laid to my charge (Job 22:5-9), I could not have persisted in it.