As Gandalf the Grey confronted Saruman the White, it became clear that the latter had turned from what he was supposed to be doing—helping to protect Middle-earth from the power of the evil being Sauron. What’s more, Saruman had allied with Sauron! In this scene from the film The Fellowship of the Ring, based on J. R. R. Tolkien’s classic work, the two former friends then engage in an epic good-versus-evil battle. If only Saruman had stayed the course and done what he knew was right!

King Saul also had trouble staying the course. In one account, he rightly “expelled the mediums and spiritists from [Israel]” (1 Samuel 28:3). Good move, for God had declared that dabbling in the occult was “detestable” (Deuteronomy 18:9-12). But when God didn’t answer the king’s plea—due to his prior failures—for how to deal with a massive Philistine army, Saul caved: “Find me a woman who is a medium, so I may go and inquire of her” (1 Samuel 28:7). Talk about a complete reversal! Saul failed once more as he went against his own decree—what he knew was right.

A millennium later, Jesus said to His disciples, “All you need to say is simply ‘Yes’ or ‘No’; anything beyond this comes from the evil one” (Matthew 5:37). In other words, if we’ve committed ourselves to obeying Christ, it’s vital that we keep our oaths and be truthful. Let’s stay the course in doing those things as God helps us.