Thematic Bible: Why the law was given

So, as through one offense there resulted condemnation for all men, just so through one act of uprightness there resulted right standing involving life for all men. For just as by that man's disobedience the whole race of men were constituted sinners, so by this One's obedience the whole race of men may be brought into right standing with God. Then law crept in to multiply the offense. Though sin has multiplied, yet God's favor has surpassed it and overflowed, read more.
so that just as sin had reigned by death, so His favor too might reign in right standing with God which issues in eternal life through Jesus Christ our Lord.