“I remember the first time I read Celebration of Discipline, Richard Foster’s book about the classic spiritual disciplines. I was eating lunch by myself in a McDonald’s restaurant in downtown Philadelphia and was so moved that tears came to my ears. I didn’t realize it at the time, but I was hungry for more than a Big Mac. I wanted a deeper relationship with God, and Foster was describing a way to find it that was new for me. I should have read the Sermon on the mount too that day, because that’s exactly the topic Jesus addresses in this passage: spiritual disciplines. … Regardless of the spiritual discipline, the key, according to Jesus, is to focus “your Father,” not what people may think. Notice how many times he uses that phrase in this chapter.”