Christ's perfect, lifelong obedience to the entire law of God on behalf of His people — imputed to them as their righteousness. Distinguished theologically from Christ's passive obedience (His suffering and death paying the law's penalty). The classic Reformed formulation: Christ's active obedience earns the righteousness that is reckoned to the believer; His passive obedience pays the penalty due for the believer's sins. Both are essential; together they make the gospel possible. Romans 5:19 names both: For as by one man's disobedience many were made sinners, so by the obedience of one shall many be made righteous. Philippians 2:8 captures the trajectory: he humbled himself, and became obedient unto death, even the death of the cross — the obedience extends from incarnation through cross. Christ's sinless life, His perfect fulfillment of the Sermon-on-the-Mount-level law, His positive love of God and neighbor, His mediatorial faithfulness — all are imputed to the believer. The Christian stands before God not just with sin removed (passive obedience) but with positive righteousness reckoned (active obedience).
Christ's perfect law-keeping credited to us.
The Reformed term for Christ's positive obedience — His perfect fulfillment of the law throughout His earthly life — reckoned to believers as their own righteousness; complementary to His passive obedience on the cross.
Romans 5:19 — "For as by one man's disobedience many were made sinners, so by the obedience of one shall many be made righteous."
Philippians 2:8 — "Being found in fashion as a man, he humbled himself, and became obedient unto death, even the death of the cross."
Galatians 4:4-5 — "But when the fulness of the time was come, God sent forth his Son, made of a woman, made under the law, to redeem them that were under the law."
Eclipsed by exclusive focus on the cross, missing the 33 years of perfect law-keeping that grounds our righteousness.
The cross is not the only place we needed Christ. He had to live for us as well as die for us — perfectly keeping the law we couldn't keep. Drop active obedience and the gospel only forgives; keep it and the gospel also clothes.
Greek hypakoē — obedience.
['Greek', 'G5218', 'hypakoē', 'obedience']
['Greek', 'G3551', 'nomos', 'law']
"Christ's life clothes you; Christ's death cleanses you."
"Active and passive obedience together complete the gospel."