Galatians 3:21-22

Is the law, therefore, opposed to the promises of God? Absolutely not! For if a law had been given that could impart life, then righteousness would certainly have come by the law. But Scripture has locked up everything under the control of sin, so that what was promised, being given through faith in Jesus Christ, might be given to those who believe. 

Is the law, therefore, opposed to the promises of God? Absolutely not! 
Galatians 2:17  "But if, in seeking to be justified in Christ, we Jews find ourselves also among the sinners, doesn't that mean that Christ promotes sin? Absolutely not!
Romans 7:12  So then, the law is holy, and the commandment is holy, righteous and good.

For if a law had been given that could impart life, then righteousness would certainly have come by the law 
Galatians 2:21  I do not set aside the grace of God, for if righteousness could be gained through the law, Christ died for nothing!

But Scripture has locked up everything under the control of sin 
Romans 3:9-12  What shall we conclude then? Do we have any advantage? Not at all! For we have already made the charge that Jews and Gentiles alike are all under the power of sin. As it is written: "There is no one righteous, not even one; there is no one who understands; there is no one who seeks God. All have turned away, they have together become worthless; there is no one who does good, not even one." (Psalm 14:1-3)
Romans 3:18-20  "There is no fear of God before their eyes." (Psalm 36:1) Now we know that whatever the law says, it says to those who are under the law, so that every mouth may be silenced and the whole world held accountable to God. Therefore no one will be declared righteous in God's sight by the works of the law; rather, through the law we become conscious of our sin.
Romans 11:32  For God has bound everyone over to disobedience so that he may have mercy on them all.

(parentheses are mine)

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