The gospel shows a God far more holy than the legalist can bear, yet far more merciful than a humanist can conceive

Jesus smashed two of the rich young ruler's assumptions: Christianity is something you can ADD and something you can DO.

Unless we believe the gospel, we will be driven in all we do-whether obeying or disobeying-by pride ('self-love') or fear ('of damnation'). Apart from 'grateful remembering' of the gospel, all good works are done then for sinful motives. Mere moral effort may restrain the heart, but does not truly change the heart. Moral effort merely 'jury rigs' the evil of the heart to produce moral behavior out of self-interest. It is only a matter of time before such a thin tissue collapses.

The Bible’s purpose is not so much to show you how to live a good life. The Bible’s purpose is to show you how God’s grace breaks into your life against your will and saves you from the sin and brokenness otherwise you would never be able to overcome… religion is ‘if you obey, then you will be accepted’. But the Gospel is, ‘if you are absolutely accepted, and sure you’re accepted, only then will you ever begin to obey’. Those are two utterly different things. Every page of the Bible shows the difference.

To love our success more than God and our neighbor hardens the heart, making us less able to feel and to sense.

In Ephesians 5, Paul shows us that even on earth Jesus did not use his power to oppress us but sacrificed everything to bring us into union with him. And this takes us beyond the philosophical to the personal and the practical. If God had the gospel of Jesus's salvation in mind when he established marriage, then marriage only 'works' to the degree that approximates the pattern of God's self-giving love in Christ.

Most apologetic books are really written for Christians, even the ones that purport to be written for non-believers.