Toward the end of his collection of Screwtape Letters, C.S. Lewis suggests that “the fine flowers of unholiness can grow only in the close neighborhood of the Holy (for) nowhere are we more tempted as on the very steps of the altar itself.” Perhaps this is why the most devout are sometimes the most dishonest, or perverse, and thus the hardest to save. So Malachi preaches a message of integrity in our worship that reaches far from the sanctuary, to the most remote places in our lives.