We are saved by grace through faith, and is not by works, and that salvation is not of yourselves, it is the gift of God (Eph 2:8). By the works of the law shall no flesh be justified (Gal 2:16). All our righteousnesses are as filthy rags (Isaiah 64:6). The works of the law cannot make us righteous (Rom 9:32) or save us (Gal 2:16).
There remaineth therefore a rest to the people of God. For he that is entered into his rest, he also hath ceased from his own works, as God did from his (Heb 4:9-10).
For I through the law am dead to the law, that I might live unto God. I am crucified with Christ: nevertheless I live; yet not I, but Christ liveth in me: and the life which I now live in the flesh I live by the faith of the Son of God, who loved me, and gave himself for me. I do not frustrate the grace of God: for if righteousness come by the law, then Christ is dead in vain (Gal 2:19-21). In Gal 2:20 the correct translation is “faith of the Son of God” not “faith in the Son of God”. The faith comes from God, and does not originate from ourselves. How is that faith received? Faith comes by hearing the Word of God (Rom 10:17).
We need to repent of dead works (Heb. 6:1) – i.e. works of the law in self effort to try to earn salvation.