Perhaps the clearest and the most concrete passage in the New Testament that points out that the punishment system of the Mosaic Covenant is DEFINETILY, ABSOLUTELY NOT VALID after 33 AD is
1 Cor 6:9-11 (KJV):
Know ye not that the unrighteous shall not inherit the kingdom of God? Be not deceived: neither fornicators, nor idolaters, nor adulterers, nor effeminate, nor abusers of themselves with mankind, Nor thieves, nor covetous, nor drunkards, nor revilers, nor extortioners, shall inherit the kingdom of God. And such were some of you: but ye are washed, but ye are sanctified, but ye are justified in the name of the Lord Jesus, and by the Spirit of our God.
Clearly, unrepentant sinful lifestyle is condemned by Paul here, but the fact that some of the members of the Church of Corinth used to be practioners of these abominations in their earlier lives - practicing homosexuals, worshippers of false gods, fornicators, thieves, drunkards etc., many things that called for the death sentence in the Levitical laws - and that Paul's intentions for them don't quite seem to include stoning to death, should end the quoting of "punishment passages" from Leviticus here. The death of Jesus Christ on the cross for the sins of the whole world had this tremendous effect.