Psalms 78:6

A testimony in Jocob - This may signify the various ordinances, rites, and ceremonies prescribed by the law; and the word law may mean the moral law, or system of religious instruction, teaching them their duty to God, to their neighbor, and to themselves. These were commanded to the fathers - the patriarchs and primitive Hebrews, that they should make them known to their children, who should make them known to the generation that was to come, whose children should also be instructed that they might declare them to their children; to the end that their hope might be in God, that they might not forget his works, and might keep his commandments: that they might not be as their fathers, but have their heart right and their spirit steadfast with God, Psalm 78:6-8 . Five generations appear to be mentioned above: 1. Fathers; 2. Their children; 3. The generation to come; 4. And their children; 5. And their children. They were never to lose sight of their history throughout all their generations. Some think the testimony here may mean the tabernacle.