Christians are saved by grace alone through faith alone in Christ alone; that is, we are saved by the Triune God alone (from the will of the Father through His beloved Son in His life and death alone by His Spirit; three distinct persons in one being) and for His glory alone. We are saved by His imputed and unified righteousness alone.
For he hath made him to be sin for us, who knew no sin; that we might be made the righteousness of God in him.
Romans 5:16-18, And not as it was by one that sinned, so is the gift: for the judgment was by one to condemnation, but the free gift is of many offences unto justification. For if by one man's offence death reigned by one; much more they which receive abundance of grace and of the gift of righteousness shall reign in life by one, Jesus Christ.) Therefore as by the offence of one judgment came upon all men to condemnation; even so by the righteousness of one the free gift came upon all men unto justification of life.
Galatians 2:21
I do not frustrate the grace of God: for if righteousness come by the law, then Christ is dead in vain.
Philippians 3:9
And be found in him, not having mine own righteousness, which is of the law, but that which is through the faith of Christ, the righteousness which is of God by faith:
