The spiritual law of God works much like the physical laws of the universe. Like the invisible law of gravity, the law of God is always in effect, working at all times. When we keep it, God blesses us. If we do not, we bring its penalty upon us.
"You shall love the Lord your God with all your heart, with all your soul and with all your might." For the most important component of serving God is to love God. "Perform God's commandments out of love. One cannot compare a person who acts out of love to one who acts from fear.
Law of God is neither out of place nor out of time.