Romans 4:4-9, 19-25

If you’re a hard worker and do a good job, you deserve your pay; we don’t call your wages a gift. But if you see that the job is too big for you, that it’s something only God can do, and you trust him to do it—you could never do it for yourself no matter how hard and long you worked—well, that trusting-him-to-do-it is what gets you set right with God, by God. Sheer gift. David confirms this way of looking at it, saying that the one who trusts God to do the putting-everything-right without insisting on having a say in it is one fortunate man

Abraham didn’t focus on his own impotence and say, “It’s hopeless. This hundred-year-old body could never father a child.” Nor did he survey Sarah’s decades of infertility and give up. He didn’t tiptoe around God’s promise asking cautiously skeptical questions. He plunged into the promise and came up strong, ready for God, sure that God would make good on what he had said. That’s why it is said, “Abraham was declared fit before God by trusting God to set him right.” But it’s not just Abraham; it’s also us! The same thing gets said about us when we embrace and believe the One who brought Jesus to life when the conditions were equally hopeless. The sacrificed Jesus made us fit for God, set us right with God.