Not being a Protestant heretic :0)I will reply as did the sainted Joan D’Arc when she was on the receiving end of, er, flamage:
If I am not in a state of Grace, may God put me there.
If I am in a state of Grace, may God keep me there.
I do not “know”, nor will I until I die. And neither do or shall you. Every time I thought I was saved God has kicked my butt. As the Man in Black said, get used to disappointment. And ambiguity.
"I write these things to you who believe in the name of the Son of God so that you may know that you have eternal life."