Some more from John Piper’s book When I Don’t Desire God.

Piper writes that one of the keys in the fight for joy is becoming a preacher and preaching the Gospel to yourself.

Far too many Christians are passive in their fight for joy. They tell me about their condition of joylessness, and I ask about the kinds of strategies they have pursued to defeat this enemy, and they give the impression that they are a helpless victim: “Joylessness is just there. What can I do?” Well, God does not mean for us to be passive. He means for us to fight the fight of faith – the fight for joy. And the central strategy is to preach the gospel to yourself. This is war. Satan is preaching for sure. If we remain passive, we surrender the field to him. (p. 81)