71问：称义怎么是上帝白白恩典的作为呢？

答：基督固然已借着顺服与代死之功，为所有被称为义之人作出了能满足上帝公义之要求、切实有效的补偿（罗5:8-10，19），但上帝既是根据自己的要求，让人单单凭着信心（罗3:24-25），单单凭着出于上帝所赐的信心（弗2:8），就能从祂自己所提供作为担保之独生子身上取得了补偿（提前2:5-6；来10:10；太20:28；但9:24，26；赛53:4-6，10-12；来7:22；罗8:32；彼前1:18-19），使独生子之义归算到他们的身上（林后5:21），就充分说明他们所以得称为义全是上帝白白的恩典了（弗1:7）。

Question 71: How is justification an act of God’s free grace?

Answer: Although Christ, by his obedience and death, did make a proper, real, and full satisfaction to God’s justice in the behalf of them that are justified; yet inasmuch as God accepts the satisfaction from a surety, which he might have demanded of them, and did provide this surety, his own only Son, imputing his righteousness to them, and requiring nothing of them for their justification but faith, which also is his gift, their justification is to them of free grace.