Some other hymns with similar themes, come to mind like Christ Is Made The Sure Foundation, or how about, “On Christ The Solid Rock I Stand; all other ground is sinking sand.”
But our confidence is not in anything we do; it’s not in our self-righteousness, our works, or our religious devices. In fact, this might come as a surprise to you, –- If you’re saved, it’s not because your walked down an aisle or repeated a prayer. Salvation is of the Lord. You are saved if you are trusting, totally, in the finished work of Jesus Christ alone.