Ephesians 2:9

Clearly, we are not saved by works. If we are saved by grace, then it cannot be by works. God is the one who makes us alive, not ourselves. We don't work for our salvation. If we don't work for it, then we have nothing to boast about. If you did something in it of yourself, then it's something you can boast about. But as far as our salvation goes, we don't work for it at all. It is by grace, through faith that we are saved. God makes us alive and we don't work for it. Therefore, do not boast in any way, shape, or form in yourself with regards to salvation at all. Instead, boast in the Lord.