3 He will take you out of the bird-net, and keep you safe from wasting disease. 4 You will be covered by his feathers; under his wings you will be safe: his good faith will be your salvation. 5 You will have no fear of the evil things of the night, or of the arrow in flight by day, 6 Or of the disease which takes men in the dark, or of the destruction which makes waste when the sun is high.

Matthew Henry's Commentary on Psalm 91:3-6

Commentary on Psalm 91:1-8

(Read Psalm 91:1-8)

He that by faith chooses God for his protector, shall find all in him that he needs or can desire. And those who have found the comfort of making the Lord their refuge, cannot but desire that others may do so. The spiritual life is protected by Divine grace from the temptations of Satan, which are as the snares of the fowler, and from the contagion of sin, which is a noisome pestilence. Great security is promised to believers in the midst of danger. Wisdom shall keep them from being afraid without cause, and faith shall keep them from being unduly afraid. Whatever is done, our heavenly Father's will is done; and we have no reason to fear. God's people shall see, not only God's promises fulfilled, but his threatenings. Then let sinners come unto the Lord upon his mercy-seat, through the Redeemer's name; and encourage others to trust in him also.