Westminster Larger Catechism
Q. 70. What is justification?
A. Justification is an act of God’s free grace unto sinners,[286] in which he pardoneth all their sins, accepteth and accounteth their persons righteous in his sight;[287] not for any thing wrought in them, or done by them,[288] but only for the perfect obedience and full satisfaction of Christ, by God imputed to them,[289] and received by faith alone.[290]
Westminster Shorter Catechism
Q. 33. What is justification?
A. Justification is an act of God’s free grace,[91] wherein he pardoneth all our sins,[92] and accepteth us as righteous in His sight,[93] only for the righteousness of Christ imputed to us,[94] and received by faith alone.[95]
Daily Westminster 