What is legalism?

Definition:
Legalism is the belief that God’s approval, acceptance, or love must be earned through strict rule-following, moral performance, or religious behavior rather than received freely through grace. In high-control Christian settings, legalism often extends to community approval, where extra-Biblical rules are used to measure holiness. Legalism can be experienced both in relation to a person’s justification (ie: where a church says someone needs to do specific works such as giving to the poor, etc., to receive God’s justification), and in relation to their sanctification (ie: where a church says a Christian needs to follow extra-Biblical rules in order to preserve their union with Christ).

Process:
Legalism tries to answer very legitimate questions. It’s terrifying for many conservative Christians to live in a world where their faith (or their children’s faith) can seem so fragile and be lost so quickly. Christians sometimes become legalistic after going through extreme circumstances such as where the faith of many they were previously close to has completely disintegrated. In a few extreme but traumatizing cases, they may become legalistic after their entire family or community has left their strain of Christianity or Christianity altogether. They often feel all alone and as though their faith will fall apart from the legalism. Very often, legalism is a primal and visceral answer to the question “How can my faith, and the faith of my community, be secure in such a broken world?”

Biblical Context:
Jesus’ encounters with the Pharisees in His earthly ministry brought out deep legalism; outwardly, they were obedient, but inwardly they were cauldrons of pride, judgmentmentalism, disordered desires, and self-deception. Legalism reduces faith to a checklist, prioritizing rules and rule-keeping over genuine union with Christ.

Legalism vs. Biblical Obedience:
Christianity emphasizes moral living and spiritual discipline, but these emerge naturally from union with Christ, not fear. As a Christian presses further into their union with Christ, they become less inclined to live immorally and want to live in a way that reflects their love for Him. Union with Christ, not legalism, is the solution to the legalist’s search for security.