Isn't it ironic that today people say, 'If you know the love of God, you don't have to worry when you go on in sin.' But the apostle John said, 'If you know the love of God, you won't be able to go on in sin.'
John PiperSo saving grace, converting grace, for Augustine, is God's giving us a sovereign joy in God that triumphs over all other joys and therefore sways the will. The will is free to move toward whatever it delights in most fully, but it is not within the power of our will to determine what that sovereign joy will be.
John PiperI know of no other way to triumph over sin long-term than to gain a distaste for it because of a superior satisfaction in God.
John PiperSleep is a daily reminder from God that we are not God. Once a day God sends us to bed like patients with a sickness. The sickness is a chronic tendency to think we are in control and that our work is indispensable. To cure us of this disease God turns us into helpless sacks of sand once a day.
John Piper