I do think it is a requirement to produce fruits worthy of repentance.
That is one of the reasons of Johns ministry.
But on the other hand when I think of the law I can't help but think of
a couple select passages,
1 Timothy 1:15
This is a faithful saying and worthy of all acceptance, that Christ Jesus came into the world to save sinners, of whom I am chief.
Phillipians 3:3-11
For we are the circumcision, who worship God in the Spirit, rejoice in Christ Jesus, and have no confidence in the flesh, though I also might have confidence in the flesh. If anyone else thinks he may have confidence in the flesh, I more so: circumcised the eighth day, of the stock of Israel, of the tribe of Benjamin, a Hebrew of the Hebrews; concerning the law, a Pharisee; concerning zeal, persecuting the church; concerning the righteousness which is in the law, blameless.
From the above We have Paul who recalled and said he was the worst sinner. On the other hand he says he is quite the opposite in the other when he was doing the law. But he said 'no confidence in the flesh' then he brings up everything else. In particular here I have brought up when he said 'conerncing the righteousness which is in the law, blameless.' So Paul said he kept the law blamelessly. But he also said he gave it up, to believe, didn't he?