Psalm 91 is a psalm of trust. There’s only half a dozen of these, and all the others in Books 1 and 2 (Psalms 11, 16, 23, 62, 63).
Now David is no longer teaching his people to pray, “The Lord is my shepherd.” David is gone, leaving them under foreign powers (Psalm 89). Moses prays the Lord to take pity on his people (Psalm 90). Psalm 91 affirms they are still in God’s care. Even without David’s reign, the Lord reigns (Psalms 93:1; 95:3; 96:10; 97:1; 98:6; 99:1). They’re still a flock shepherded by the Lord (95:7; 100:3). That’s the context of this psalm of trust.
Psalm 91:1-2 (NIV)
1 Whoever dwells in the shelter of the Most High will rest in the shadow of the Almighty.
2 I will say of the Lord, “He is my refuge and my fortress, my God, in whom I trust.”
