Under Covenant, Moses explains to Israel how they shall receive THEIR righteousness.
Deuteronomy 6:25 And it shall be our righteousness, if we observe to do all these commandments before the LORD our God, as he hath commanded us.
Under Grace, Paul explains how we receive OUR righteousness.
Romans 10:4 For Christ is the end of the law for righteousness to every one that believeth.
So Moses tells Israel that "it shall be our righteousness, if we observe to do", but Paul tells us that righteousness is for "every one that believeth."
"do" or "believe" for righteousness. Which is it? They cannot both be true at the same time. The answer is It WAS "do" but is NOW "believe."
Christ was not "the end of the law for righteousness" when Moses wrote the book of Deuteronomy.
*Before Christ could bring an "end" to the law, he had to first "fulfil" it. (Matthew 5:17)
*Die for the sins of the world, be buried and resurrected. (1 Corinthians 15:1-4)
*Ascend into the heavenlies (Acts 1:9), return (Acts 9:3), and tell Paul "to testify the gospel of the grace of God." (Acts 20:24)
It was through that gospel that Christ revealed to Paul, ALL that he accomplished on our behalf.
Notice the comparison Paul makes in Romans 10:4-5.
4 For Christ is the end of the law for righteousness to every one that believeth.
5 For Moses describeth the righteousness which is of the law, That the man which doeth those things shall live by them.
Before the finished cross-work "Moses describeth the righteousness which is of the law," but NOW "Christ is the end of the law for righteousness to every one that believeth."
Too bad our denominational religious institutions aren't comparing scripture with scripture and showing their congregations how to rightly divide the word of truth.
Watch what Jesus told Israel in Matthew 5:20 For I say unto you, That except your righteousness shall exceed the righteousness of the scribes and Pharisees, ye shall in no case enter into the kingdom of heaven.
What righteousness of "the scribes and the Pharisees" was Jesus speaking of?
Matthew 23:1-3 Then spake Jesus to the multitude, and to his disciples, Saying, The scribes and the Pharisees sit in Moses' seat: All therefore whatsoever they bid you observe, that observe and do; but do not ye after their works: for they say, and do not.
"whatsoever they bid you observe, that observe and do;" Jesus is telling the multitude, and his disciples, to go to the synagogue and find the ones who "sit in Moses' seat:" and do what they tell you to do.
What would that have been? The law.
Jesus was not teaching "by grace are ye saved through faith; and that not of yourselves: it is the gift of God: Not of works, lest any man should boast." (Ephesians 2:8-9) That was the message he later gave Paul to preach.
Before Israel fell, Jesus said "salvation is of the Jews", and at that time righteousness was EARNED. Like us, they too had to have faith. But their faith had to be accompanied by expressive works. (James 2:17, 26) Our faith is to stand alone.
But to him that worketh not, but believeth on him that justifieth the ungodly, his faith is counted for righteousness. (Romans 4:5)
Whomever "worketh not" will have His faith "counted for righteousness."
It is apparent that Paul was given many different instructions for us to follow, and the quicker you get that, the quicker you can move on to better understanding you bible.
Before Paul's "gospel of the grace of God" was revealed to him, the bible tells that righteousness came to those who WORKED for it. "But now the righteousness of God without the law is manifested, being witnessed by the law and the prophets;" (Romans 3:21)
Paul said "I do not frustrate the grace of God: for if righteousness come by the law, then Christ is dead in vain." (Galatians 3:21)
It was Paul's desire to "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:" (Philippians 3:9)
Before Paul, neither Moses, Peter, James or John would have said "Not by works of righteousness which we have done, but according to his mercy he saved us,.." (Titus 3:5)
Watch carefully what Peter said in Acts 10:35 But in every nation he that feareth him, and worketh righteousness, is accepted with him.
"worketh righteousness" VS. "Not by works of righteousness". No mater what denomination name brand you wear, the only way to not see the difference, is to NOT see it on purpose.
The key to understanding your bible is to rightly divide the word of truth. (2 Timothy 2:15)