Blessed Assurance?

How does one know, have certainty, have assurance that they have been saved, that they have become a new creation?

Response to comment [from a Christian]:  "My peace give I to you."

Yep (Rom. 5:1).

Response to comment [from a "Christian"]:  "This might be a dumb question but...Does Jesus ever claim perfection for himself?"

It's like pulling teeth getting RulzGod to address these questions about the nature of God. Mt 5:48.

See:

Perfect, perfection

Blessed Assurance?