Psalm 78:6,7

Psalm 78:6,7 (KJV)
6 That the generation to come might know them, even the children which should be born; who should arise and declare them to their children:
7 That they might set their hope in God, and not forget the works of God, but keep his commandments:

Remember God And Obey His Laws

Many things we are attached to in life are idols and must be forsaken to be in His will. Look at the second commandment, for instance.