Forgiving, Repenting, being "Saved."

Question: 

Does John 6:37 mean that once I’m saved, no matter what sin I do, if I come to Jesus and ask for forgiveness and repent from that sin, I will not be cast out?

Answer: 

I don't see anything about asking forgiveness and repenting nor anything about "being saved." All of these are Christian concepts invented after Jesus. He doesn't use these ideas at all. What is translated as "forgive" means "let go" as in dropping something. What is translated as "repent" means "change your mind" as in thinking differently. What gets translated as "being saved" is the idea of being "rescued" not from "evil" but from "worthlessness."

None of this is in the verses. Or in its context. His ideas in John 6:37 are simpler.  You are either returning to Jesus or moving away from him. Those who the Father has given him must return to him. If you are returning to him, you will not be tossed outside, that is, left alone. There is no concept of "heaven" and "hell" in Jesus's teaching either except in the sense that you are either moving toward the Divine or away from Him.