The Bible rings with one long demand for obedience. The key word of Deuteronomy is, "Observe and do." The burden of our Lord's farewell discourse is, "If ye love Me, keep My commandments." We must not question or reply or excuse ourselves. We must not pick and choose our way. We must not think that obedience in one direction will compensate for disobedience in another. God gives one command at a time; if we obey this He will flood our soul with blessing, and lead us forward into new paths and pastures. But if we refuse we shall remain stagnant, make no progress in Christian experience, and lack both power and joy.