God's Promises

"[Abraham] did not waver through unbelief regarding the promise of God, but was strengthened in his faith and gave glory to God, being fully persuaded that God had power to do what he had promised."
Romans 4:20-21

Paul spends much of Romans 4 talking about Abraham, but these two verses stick out to me.  

Recently I've been thinking about "calling" so as I read about Abraham today, I'm wondering if there is a promise I should hold "unwavering" to.  

Is it simply the promise of the New Covenant?  The promise that there is life in Jesus Christ alone by the grace of God?  Or is there a unique promise that God has for me in my life?

My prayer is that I will continually be renewed by the truth of the grace of God, and that I would always hold unwavering to the promises in scripture, but also that I would always have ears to hear God's voice in my own life.