Sheer mercy! I know the feeling. Luther of Germany, Martin, expressed it:
I grasped that the righteousness of God is that righteousness by which through grace and sheer mercy God justifies us through faith. Thereupon I felt myself to be reborn and to have gone through open doors into paradise. – Martin Luther, quoted by David Zahl, Justify Yourself; Christianity Today, Jan-Feb 2017; p.37.
There is no way on earth that any of us can live to merit God’s forgiveness – His grace and His mercy. No way in hell. No way in the whole God-damned universe. Because it is not good enough for holiness, Holy God. Without Christ, what am I? Certainly not holy – without fault. How can I hope to merit anything of God?
He chose me. With all of everything in His realms – He chose me. How can I fail to respond to that!? Amazing grace was all He needed to give to save a sinner like me. He came down to die for me. My response of confession and acknowledgement is all He requires.
That is why I fall on my face (in my heart, my most humble position) overwhelmed, and so gratefully speak to God in prayer (from my innermost being), barely able to choose the words because the thought floods my soul:
Thank you. Thank you. Thank you, God, my Father. How undeservedly I come to You, rejoicing in my elevated position in You because You have forgiven me of all my sin. Thank you, thank you, thank you. Thank You for making me Your forever child, forever never to be condemned again. Forever to be loved and accepted in Your Kingdom in Heaven. Wow. How amazing is your love for a sinner, just as I am.