Albert Barnes Commentary Psalms 91:14

"Because he hath set his love upon me, therefore will I deliver him: I will set him on high, because he hath known my name." — Psalms 91:14 (ASV)

Because he hath set his love upon me – Has become attached to me; has united himself with me; is my friend. The Hebrew word expresses the strongest attachment and is equivalent to our expression – “to fall in love.” It refers here to the fact that God is the object of supreme affection on the part of his people; and it also implies here that this springs from their hearts; that they have seen such beauty in his character and have such strong desire for him, that their hearts go out in warm affection toward him.

Therefore will I deliver him – I will save him from trouble and from danger.

I will set him on high – By acknowledging him as my own, and treating him accordingly.

Because he hath known my name – He has known me; that is, he understands my true character and has learned to love me.