Jesus' teaching in general [implies] that happy and fulfilling sexual relations in marriage depend on each partner aiming to give satisfaction to the other. If it is the joy of each to make the other happy, a hundred problems will be solved before they happen.
John PiperFaith is born and sustained by the Word of God, and out of faith grows the flower of joy.
John PiperExultation that does not flow from education, affections that do not flow from knowing, savoring that does not flow from seeing, feeling that does not flow from thinking - are hollow and rootless - noisy gongs and clanging cymbals. And God is not glorified by artificial and empty passions. True delight is rooted in true doctrine. God-centered exultation is rooted in God-centered education.
John Piper