Psalm 91 is more than a prayer in times of danger. It describes the blessings a person enjoys who meets one condition in particular: dwelling in the secret place of the Most High. The place of intimacy with God.
Psalm 91 is a well-known prayer for protection and deliverance. In times of crisis, there is one place we can always run to: the arms of our Heavenly Father! Where He is, no evil can be also. In His shadow, disaster cannot reach us.
On Yom Kippur, the High Priest chose a goat to carry the sins of the people into the wilderness. Isaiah 53 tells us that one day, God will put our sin on the true scapegoat who will bear our sin.