Psalm 91 is one of the most powerful of the Psalms written by David speaking of God's deliverance and salvation (Yeshua.) It is God's "911." Satan himself quoted the verse 12 of the Psalm when in the wilderness temptation, he suggested that he through himself off the cliff because angels would lift him up (Luke 4:11-12, Mattthew 4:6-7.) Psalms 41 and 141 both illustrate the characteristics of the person who can have that faith in the deliverance of God.