We can say that true gratitude does not give rise to the debtor's ethic because it gives rise to faith in future grace. With true gratitude there is such a delight in the worth of God's past grace, that we are driven on to experience more and more of it in the future...it is done by transforming gratitude into faith as it turns from contemplating the pleasures of past grace and starts contemplating the promises of the future.
John PiperThe highest meaning and the most ultimate purpose of marriage is to put the covenant relationship of Christ and his church on display. That is why marriage exists. If you are married, that is why you are married. If you hope to be, that should be your dream.
John PiperMarriage. The roots are deep. The covenant is solid. The love is sweet. Life is hard. And God is good.
John PiperSin is what you do when your heart is not satisfied with God. No one sins out of duty. We sin because it holds out some promise of happiness. That promise enslaves us until we believe that God is more to be desired than life itself (Psalm 63:3). Which means that the power of sin's promise is broken by the power of God's.
John Piper