It is the Biblical duty of every generation of Christians to see to it that the next generation hears about the mighty acts of God. God does not drop a new Bible from heaven on every generation. He intends that the older generation will teach the newer generation to read and think and trust and obey and rejoice. It's true that God draws near personally to every new generation of believers, but he does so through the Biblical truth that they learn from the preceding generations. The Spirit comes down vertically (you might say) where the truth of God is imparted horizontally.
But there is another reason that Psalm 145:4 is so relevant to our theme this morning. Not only does it speak of the imparting of truth from one generation to another, it speaks of a certain kind of imparting. It is an imparting with exultation and for exultation. Notice the words. It does not say, "One generation shall merely teach Your works to another." It says, "One generation shall praise Your works to another." Praise is exultation in God. The education of the next generation must not only aim at exultation, it must involve exultation.
Teachers and parents who do not exult over God in their teaching will not bring about exultation in God. Dry, unemotional, indifferent teaching about God—whether at home or at church—is a half-truth, at best. It says one thing about God and portrays another thing. It is inconsistent. It says that God is great, but teaches as if God is not great.
Psalm 145:4 shows us another way: "One generation shall praise Your works to another." Let praises carry the truth to the next generation, because the aim of truth is praise. The aim of education is exultation. So let education model exultation in the way it is done.
(John Piper, Copyright ©2013 Desiring God Foundation, www.desiringGod.org)