Why does God pour out grace on sinners?
God pours out grace on sinners because of His love, supremely shown at the cross. Grace is God's attribute that gives undeserved favor and mercy to undeserving people, not because they merit it. He loved sinners as sinners, and righteousness does not come by the law.
Les explains that grace is not the concept most people have. God does not expect us never to fall; when we do, He is ready to pick us up and put us on our way. Paul says he does not frustrate the grace of God, refusing to fly in the face of grace by saying he must do what the law says. We today are not under law but under grace. Grace is that attribute of God capable of pouring out undeserved favor and mercy on sinners like you and me, sons of Adam, all because of the love poured out at the cross. That was love epitomized, as great an act of love as has ever been done, because He loved you and me as sinners, not angelic beings, but undeserving. Paul adds that if righteousness comes by law or legalism, then Christ is dead in vain.