For today only, the excellent book How People Change by Paul Tripp and Timothy Lane, normally $17.99, is free (e-book format only).
From the publisher:
A changed heart is the bright promise of the gospel.
When the Bible talks about the gift of a new heart, it doesn’t mean a heart that is immediately perfected, but a heart that is capable of being changed. Jesus’ work on the cross targets our hearts, our core desires and motivations, and when our hearts change, our behavior changes. It’s amazing to watch people who once seemed stuck in a pattern of words, choices, and behaviors start living in a new way as Christ changes their hearts.
This is one of, if not the, best books I know on the subject of how the gospel produces deep and lasting change in matters of the heart.
…the idolatry in question is the idolatry of good and useful things from our modern world that, in the form of powerful modern myths, have been allowed to become distortions of the gospel and substitutes for faith in God. For, contrary to popular misconceptions, the idols against which the Bible warns are not simply the concerns of others (those ‘pagans’) and the obvious crudity of their objects of worship (their ‘gods of wood and stone’).
In the biblical view, anything created–anything at all that is less than God, and most especially the gifts of God–can become idolatrous if it is relied upon inordinately until it becomes a full-blown substitute for God and, thus, an idol. The first duty of believers is to say yes to God; the second is to say no to idols.
—Os Guinness and John Seel, No God But God: Breaking with the Idols of our Age, p. 16 (Moody Publishers, OOP). Line break and emphases mine.