From obedience not only comes pardon (from our sins) but protection as well. The Lord has promised to be on the side of all them that obey Him and when God is on our side, we can be assured that no one can be against us (Romans 8:31).
From obedience comes not only pardon but protection; not only salvation but safety/security.
Exodus 23:21-22 (KJV)
21 Beware of him, and obey his voice, provoke him not; for he will not pardon your transgressions: for my name is in him.
22 But if thou shalt indeed obey his voice, and do all that I speak; then I will be an enemy unto thine enemies, and an adversary unto thine adversaries.