Gospel Summary in Romans

What sentence or two would help someone know what the Christian faith is all about? Most would immediately cite John 3:16. However, Paul defines the heart of the faith in a few sentences in his letter to the Romans. Romans 4:20-25
English Standard Version
20 No unbelief made him waver concerning the promise of God, but he grew strong in his faith as he gave glory to God, 21 fully convinced that God was able to do what he had promised. 22 That is why his faith was "counted to him as righteousness." 23 But the words "it was counted to him" were not written for his sake alone, 24 but for ours also. It will be counted to us who believe in him who raised from the dead Jesus our Lord, 25 who was delivered up for our trespasses and raised for our justification.