By grace you have been saved through faith, and that not of yourselves; it is the gift of God, not of works, lest anyone should boast. For we are His workmanship, created in Christ Jesus for good works, which God prepared beforehand that we should walk in them. (Ephesians 2:8-10)
It is clear; it is simple: we are not saved by works; we are saved for works. There is only one work that brings salvation: the work of Christ’s victory over sin and death. It is not that we have to do works to obtain salvation, but that because we are saved we will. For example, you do not have to confess verbally, but if you are His, you will. Consider these three: grace, faith and works. They are, for the believer, inseparable. Grace is God’s favor, which grants us the ability to be conformed to the image of His Son; believing, trusting, and obeying express faith. Works are the evidences of God’s grace producing fruit through faith. Christianity is not a have-to religion; it is a get-to religion. We are saved by what Christ has done and what He has done alone. Therefore, we do good works, not to be saved, but because we are saved. We cannot separate verse 10 from verses 8 and 9.