If thou sinnest, what doest thou against him? Man's sins against God cannot injure him, diminish from his power, or lower his dignity. They can only injure the sinner himself. God does not punish them because they harm him, but because they are discords in the harmony of his moral universe.
Or even if thy transgressions be multiplied; i.e. if thou persistest in a long course of sin, and addest "rebellion" to transgression, and self-complacency to rebellion, and "multipliest thy words against God" (Job 34:37)—even then, what doest thou unto him?
i.e; what hurt dost thou inflict upon him? None.