How does a person secure such an assurance? First, by living a present life that doesn't preclude one’s entrance into the kingdom. There are many who have lived lives that do not qualify them for admission, but, there are many who have and many who will. Further, an entrance ticket is gained by living a life that calls God’s attention to one’s “having done good."
I don't have enough information to comment on the rest of what you wrote, but you've definitely got this part backwards. If your "entrance ticket" is earned by you then God owes it to you, and it is no longer by grace that you have been saved, which directly and explicitly contradicts what the Bible says about the subject:
2If, in fact, Abraham was justified by works, he had something to boast about—but not before God. 3What does the Scripture say? "Abraham believed God, and it was credited to him as righteousness. "[a]4Now when a man works, his wages are not credited to him as a gift, but as an obligation. 5However, to the man who does not work but trusts God who justifies the wicked, his faith is credited as righteousness. 6 David says the same thing when he speaks of the blessedness of the man to whom God credits righteousness apart from works:
7"Blessed are they
whose transgressions are forgiven,
whose sins are covered.
8 Blessed is the man
whose sin the Lord will never count against him."[b]
Romans 4:2-8
Cordially,
Please forgive me for giving the wrong impression. We are definitely saved by grace - absolutely! No question about it. I was trying to say that our lives need to be lived in such a way as to cause God to take notice of us, in order to resurrect us from the dead in our proper order. It is not something we earn at all - I didn’t mean to imply that. What I wrote was just a brief quick sketch of my ideas, mainly for Truth Defender’s benefit. Sorry.