How Can I Be Sure?

That's been the question I've been asking God the past few days.  This morning, God shed some "light" (pun intended) on it for me. I began reading the book of Luke this morning.  I right away began to identify with Zechariah and what happened with him in the temple. Here's a few points that I could identify with -

1. vs. 6 -He was upright in the sight of the Lord. His wife was too.

(Meaning, he observed the Lord's commandments )- Even so, his wife Elizabeth was barren.

I've been "upright" in...