But the faith that God gave Abraham did not falter, as it never will, but grew: “[Abraham] did not waver in unbelief about the promise of God but was strengthened in faith, giving glory to God. He was fully convinced that what God promised he was also able to do” (Rom. 4:20-21 NET). Therefore, “In hope [Abraham] believed against hope.” Though his circumstances shouted hopelessness, Abraham had hope, not because he looked to himself and his faithfulness but because he looked to the One who promised.
Consider the immediate reality of this eternal life! How we live now has meaning and significance. As R.C. Sproul said rightly, “Right now counts forever.”  And as Jesus is the Way, it is through him that we live this life. The way to eternal life and the way to live life are one in the same—through faith in the Son of God. This is why Paul could say, “the life I now live in the flesh I live by faith in the Son of God, who loved me and gave himself for me” (Gal. 2:20), and that “the righteousness of God is revealed from faith for faith, as it is written, ‘The righteous shall live by faith’” (Rom. 1:17).