Everything we’re tempted with has a life cycle. We perceive something, we dwell on it, and eventually, we act on it. Adultery is no different. It has a beginning, middle, and end, and Jesus shows us that it is as much a matter of the heart as it is a harmful act. But this command is not only a warning. It is also an invitation into deep, undivided faithfulness, the kind of faithfulness God has already shown to us.