God's faithfulness means He blesses obedience. But His justice also means He will respond to persistent disobedience. Leviticus 26 outlines a terrifying principle: God 'walks contrary' to those who walk contrary to Him.
The repeated phrase 'walk contrary unto me' (found in verses 21, 23, 27, 40, 41) highlights a deliberate, persistent rebellion against God's ways.
The Principle of Reciprocity
God establishes a principle of consequence. When His people choose to live in opposition to His commands, His posture towards them shifts. He doesn't just passively observe; He actively responds. The text explains this as God 'will also walk contrary unto you' (v. 24, 28) or 'I will also send faintness into their hearts' (v. 36) as a consequence of their chosen path.
From Blessing to Curse
This isn't arbitrary punishment. It's the natural outcome of rejecting God's ordered, life-giving way. For those who continue in sin ('walk contrary unto me'), God's favor turns into judgment. Blessings turn into curses. Security turns into terror. The very blessings they might have enjoyed are turned against them or become insufficient.
The Escalation of Judgment
The commentary suggests a 'gradation of punishments.' God doesn't immediately bring the most severe judgments. Instead, He often allows lesser warnings to serve as spurs. But for those who remain obstinate ('if ye will not yet for all this hearken unto me,' v. 18), the punishments escalate, becoming 'seven times more for your sins.' This emphasizes that God's judgment is not capricious but a just response to ongoing, defiant sin.