Augustine from a sermon on the two tablets: “the Decalogue pertains to the two precepts, that is, those of love for God and neighbor. Three strings belong to the first precept because God is Trinity. While to the other precept, that is, love for the neighbor, there are seven strings: how one should live with other human beings. . . . Let us join these seven to those three pertaining to love for God, if we wish to sing a new song on the ten-stringed lute.”