Scripture also teaches that no amount of human goodness, human works, human morality, or religious activity can gain acceptance with God or get anyone into heaven. The moral man, the religious man, and the immoral and non-religious are all in the same boat. They all fall short of God’s perfect righteousness. After discussing the immoral man, the moral man, and the religious man in Romans 1:18-3:8, the Apostle Paul declares that both Jews and Greeks are under sin, that “there is no one righteous, not even one” (Rom. 3:9-10). Added to this are the declarations of the following verses of Scripture:
Ephesians 2:8-9 For by grace you are saved through faith, and this is not of yourselves, it is the gift of God; 9 it is not of works, so that no one can boast.
Titus 3:5-7 he saved us, not by works of righteousness that we have done but on the basis of his mercy, through the washing of the new birth and the renewing of the Holy Spirit, 6 whom he poured out on us in full measure through Jesus Christ our Savior. 7 And so, since we have been justified by his grace, we become heirs with the confident expectation of eternal life.
Romans 4:1-5 What then shall we say that Abraham, our ancestor according to the flesh, has discovered regarding this matter? 2 For if Abraham was declared righteous by the works of the law, he has something to boast about (but not before God). 3 For what does the scripture say? “Abraham believed God, and it was credited to him as righteousness.” 4 Now to the one who works, his pay is not credited due to grace but due to obligation. 5 But to the one who does not work, but believes in the one who declares the ungodly righteous, his faith is credited as righteousness.