Weekly Devotional · The Gospel of Mark
The Lawyer In Your Heart
Mark 7:20–23 · From the sermon by Pastor Samuel Sutter · May 31, 2026
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You already decided. You just haven't admitted it yet. The choice got made somewhere down in the basement of you about twenty minutes ago, and ever since, your brain has been upstairs in a nice suit, building the case.
You know the feeling. You're halfway through the second helping of the argument in your head, the one where you're completely right and they're completely awful, and some quiet part of you knows you went looking for that text on purpose. You knew it would sting. And here you are anyway, explaining to yourself why it was fair. Why you had no choice. Why, given everything, anybody would've done the same.
Here's the thing. That voice in your head isn't neutral. We like to picture the heart as a quiet judge, calm, weighing the evidence, open to whatever turns out to be true. It isn't. Your heart already hired a lawyer, and that lawyer has exactly one client: whatever you already wanted. He doesn't investigate the case. He defends it. He'll work nights. He'll twist a Bible verse if it helps. And he never, ever rests.
Mark 7:20–23
"What comes out of a person is what defiles them. For it is from within, out of a person's heart, that evil thoughts come, sexual immorality, theft, murder, adultery, greed, malice, deceit, lewdness, envy, slander, arrogance and folly. All these evils come from inside and defile a person."
Notice the very first item on Jesus' list of what actually pours out of a person. "Evil thoughts." In the Greek, that's dialogismoi. And it doesn't mean a stray bad idea that floats past you on a Tuesday. It means reasonings. Calculations. The back-and-forth of a courtroom. The picture Jesus is painting isn't a clean mind that occasionally catches something dirty. It's a heart that is always arguing, always drafting the brief for what it already loves.
Watch how it works, because Jesus had just handed the crowd the perfect example a few verses earlier. Corban. A man looks at the money that's supposed to care for his aging parents, money the fifth commandment has his own name written on, and he simply doesn't want to spend it. So he stamps it "devoted to God." Sacred. Off-limits. Sorry, Dad, my hands are tied. And the dark genius of the whole thing is that he never actually gives the money to God. He keeps it. He keeps using it. He just found a holy-sounding label that lets him rob his own parents and feel righteous doing it. That's not a man who lost a fight with his heart. That's a man whose heart won, and then dressed the win up in Scripture.
So here's the bad news, and honestly you already feel it. You cannot out-argue your own heart. You are not going to win a debate against the one lawyer who knows every soft spot you've got, because he is you. Reading more, trying harder, white-knuckling your way toward purer motives, that's just hiring a second lawyer to argue with the first. Same courtroom. Same client. And this is exactly the spot where the gospel quits being good advice and becomes a rescue. Jesus doesn't hand you a sharper counter-argument. He doesn't coach you to think tidier thoughts. The prophets promised something far wilder than self-improvement. "I will give you a new heart and put a new spirit in you." Not a remodeled heart. A new one. He fires the lawyer and installs a different one entirely, one who's finally working for the right client.
This Week
Catch the lawyer in the act. The next time you notice yourself building the case, the smooth, reasonable explanation for why the cold thing you want to do is actually fine, stop and say it out loud: "I'm rationalizing." Then pray one plain sentence. Jesus, I can't get into this room. You can. Here's the key. Don't try to win the argument. Just hand him the door.
"What comes out of a person is what defiles them."
Mark 7:20
Reflect
1. Think of a decision you defended hard this week. If you're honest, did you actually weigh it fairly, or had you already decided and then built the case afterward?
2. Where are you using a good-sounding reason right now (busyness, "boundaries," being responsible, even your faith) to cover something your heart simply wants?
3. You can't change your own heart, but you can hand Jesus the key. What's the one room you've been guarding instead of giving him?