19 For I through the law died to the law, that I might live to God. 20 I have been crucified with Christ; it is no longer I who live, but Christ who lives in me; and the life I now live in the flesh I live by faith in the Son of God, who loved me and gave himself for me. 21 I do not nullify the grace of God; for if justification were through the law, then Christ died to no purpose.