Thou shalt not kill. Thou shalt not commit adultery. Thou shalt not steal. Thou shalt not bear false witness against thy neighbour. Thou shalt not covet.
Salvation is a free gift.
It is bestowed upon you by the amazing grace of God. You are saved by grace and grace alone. You do not obey God's Law in order to be saved. You obey God's Law because you ARE saved. You obey God's Law as an expression of your love for Him.