The cross: debt discharged

III. Christ, by his obedience and death, did fully discharge the debt of all those that are thus justified, and did make a proper, real, and full satisfaction to his Father’s justice in their behalf.a Yet inasmuch as he was given by the Father for them,b and his obedience and satisfaction accepted in their stead,c and both freely, not for anything in them, their justification is only of free grace;d that both the exact justice and rich grace of God might be glorified in the justification of sinners.e

Westminster Confession of Faith (1646), ch. 11.3, “Of Justification”