love is expressed in knowing and following his words, not least in passing them on to the next generation. Love for God must never degenerate into protestations of passion without thought, into sentimental twaddle. It must be shaped by thinking God’s thoughts after him, and loving him precisely in and through and by means of knowing and delighting in his words—which is precisely why there is so much emphasis on mind and volition. So just because I study the half-life of a quark, a pileated woodpecker,