Repentance out of mere fear is really sorrow for the consequences of sin, sorrow over the danger of sin — it bends the will away from sin, but the heart still clings. But repentance out of conviction over mercy is really sorrow over sin, sorrow over the grievousness of sin — it melts the heart away from sin. It makes the sin itself disgusting to us, so it loses its attractive power over us. We say, ‘this disgusting thing is an affront to the one who died for me. I’m continuing to stab him with it!’

If we are deeply moved by the sight of his love for us, it detaches our hearts from other would-be saviors. We stop trying to redeem ourselves through our pursuits and relationships, because we are already redeemed. We stop trying to make others into saviors, because we have a Savior.

Religious people find God useful. Gospel people find him beautiful.

It is not the strength of your faith but the object of your faith that actually saves you.

[T]he main problem in life is sin, and the only solution is God and his grace. The alternative to this view is to identify something besides sin as the main problem with the world and something besides God as the main remedy. That demonizes something that is not completely bad, and makes an idol out of something that cannot be the ultimate good.

The targets of this story are not wayward sinners but religious people who do everything the Bible requires. Jesus is pleading not so much with immoral outsiders as with moral insiders. H wants to show them their blindness, narrowness, and self righteousness, and how these things are destroying both their own souls and the lives of the people around them.

Neither son loved the father for himself. They both were using the father for their own self-centered ends rather than loving, enjoying, and serving him for his own sake. This means that you can rebel against God and be alienated from him either by breaking his rules or by keeping all of them diligently. It 's a shocking message: Careful obedience to God's law may serve as a strategy for rebelling against God .