Here are some good posts for your weekend reading:
First, some posts about the gospel. Tullian Tchividjian talks about the important connection between the gospel and our Christian growth in two posts here and here. Meanwhile, Trevin Wax suggests that worry comes from a failure to grasp the gospel.
Second, another post on idolatry. Thabiti Anyabwile gives us a quote from Paul David Tripp that ties our desires, idolatry, and spiritual adultery together.