He shall cover thee with his feathers ... - As the parent bird protects its young. See the notes at Psalms 17:8. Compare Deuteronomy 32:11. “His truth.” His unfailing promise; the certainty that what he has promised to do he will perform.
Shall be thy shield and buckler - literally, “Shield and buckler is his truth.” The meaning is, that his pledge or promise would be unto them as the shield of the soldier is to him in battle. Compare Psalms 35:2. The word rendered “buckler” is derived from the verb “to surround,” and is given to the defensive armor here referred to, because it “surrounds,” and thus “protects” a person. It may apply to a coat of mail.