Greetings and Salutations,
When I read Paul's epistles I see that you can't sin willfully and expect to go to heaven. Sanctification of The Holy Spirit falls right inline with what Jesus says. Whatever is not done by faith is sin, Paul says. Jesus says take no thought of your life. Same exact thing.
Not exactly the same. Jesus' teaching about judgement is based on actions, but mostly on showing fruit and accepting the Gospel. Jesus doesn't talk about sin except forgiving it. Paul does, as you say, speak a lot more about sin. He also sees holiness as a goal, where Jesus never calls a human holy or sets it up as an objective.
Because probably people reading this thread haven't seen the other one, I'm going to repeat something I posted elsewhere:
Jesus taught obedience, not holiness. There’s a difference. Purity and holiness were the ideals of the Pharisees. Purity is your accomplishment. People work to achieve it, and are worried about doing questionable things, even if they might help someone, because it might make them impure.
That's the real meaning of the parable of the good Samaritan. "passed by on the other side. Luke uses a rare doubly compounded vb., anti-parerchesthai, another sense of which is found in Wis 16:10. The implication of his passing by is to avoid contamination by contact with or proximity to a dead body." (commentary on Luke in the Anchor Bible) The problem with the priest and Levite wasn't that they were hard-hearted, but that their purity requirements kept them from becoming involved with the victim.
Obedience looks only to Jesus and to the good of our neighbor. It doesn’t imagine that in doing that we achieve anything for ourselves. We don’t become “holy” that way.
“So you also, when you have done all that you were ordered to do, say, ‘We are worthless slaves; we have done only what we ought to have done!’ ” (Luke 17:10)
Furthermore, improving morals was never Jesus’ goal. Jewish morals were already if anything too strict. His goal was to reconcile us to God and to each other, because he knew that in the end behavior that really furthers the ends of the Kingdom comes from grateful people who are forgiven, not people who are afraid of becoming impure.
I think Paul's doctrine of justification by faith corresponds to Jesus' emphasis. But Paul does use some of the categories that Jesus avoided.