Psalms 77:5

Testimony. The tabernacle, (Eusebius) or the law which notifies his will. (Calmet) (Menochius) --- He also thrice required the Israelites to perpetuate the memory of what he had done for them, by instructing their children, Deuteronomy iv. 9., and vi. 7., and xi. 19. Both the written and the unwritten word must be carefully preserved, 2 Thessalonians ii. 14. God had freely chosen Abraham, and given him the law of circumcision; as he directed his posterity by the mouth of Moses. (Worthington)