21 I do not nullify the grace of God, for if righteousness were through the law, then Christ died for no purpose.
Romans 11
6 But if it is by grace, it is no longer on the basis of works; otherwise grace would no longer be grace.
Romans 5
15 But the free gift is not like the trespass. For if many died through one man's trespass, much more have the grace of God and the free gift by the grace of that one man Jesus Christ abounded for many.
