That is, that God was in Christ, reconciling the world unto himself, not imputing their trespasses unto them; and has committed unto us the word of reconciliation.
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Ambrosiaster
AD 400
God was in Christ, that is to say, the Father was in the Son, reconciling the world to himself, not counting their sins against them. Creation sinned against God and did not repent, so God, who did not want his work to perish, sent his Son in order to preach through him the forgiveness of sins and thus reconcile them to himself. Commentary on Paul’s Epistles.
God was in Christ. I.e, as the Son by oneness of Essence. So Ambrose and Primasius. Hence S. Ambrose (de Fide ad Gratian, lib. iii. c5) says that God, i.e, everlasting Divinity, was in Christ, and Christ reconciled the world because He was God. Secondly, and better: "God was in Christ," i.e, through Christ, reconciling the world to Himself. Thirdly, Cajetan takes it: God reconciled to Himself the world in Christ, or the world that believes in Christ. But this seems forced and harsh.
Not imputing their trespasses unto them. Not imputing but freely forgiving their trespasses, not by imputation of the righteousness of Christ, as the heretics think, but by a real infusion of it. So Chrysostom and Anselm.
Observe the Hebraism. (1.) When the Scripture says that God imputes or does not impute sin, it does not mean that He acts against the reality of things, for so would God be false, but rather, since the judgment of God is most pure, He regards things and sins as they truly are. (2.) The s...
Not imputing, i.e. truly taking away our sins, blotting out the handwriting of the decree which was against us. Fastening it to the cross, as it is said, Colossians ii. 14. And to us, who are his apostles and the ministers of his gospel, he hath imparted and committed this word of reconciliation, by the preaching of his doctrine, and the administration of his sacraments In these functions we act and we speak to you as the ambassadors of Christ; we speak to you in his name, we represent his person, when we exhort you to be reconciled to God. "He that heareth you, heareth me. "(Luke x. 16.) (Witham)
5. To wit, that God was in Christ reconciling the world unto Himself, not reckoning unto them their tresspasses.
Do you see love surpassing all expression, all conception? Who was the aggrieved one? Himself. Who first sought the reconciliation? Himself. 'And yet,' says one, 'He sent the Son, He did not come Himself.' The Son indeed it was He sent; still not He alone besought, but both with Him and by Him the Father; wherefore he said, that, God was reconciling the world unto Himself in Christ: that is, by Christ. For seeing he had said, Who gave unto us the ministry of reconciliation; he here used a corrective, saying, Think not that we act of our own authority in the business: we are ministers; and He that does the whole is God, Who reconciled the world by the Only-Begotten. And how did He reconcile it unto Himself? For this is the marvel, not that it was made a friend only, but also by this way a friend. This way? What way? Forgiving them their sins; for in no other way was it pos...
Can you see how great God’s love is for us? Who was the offended party? He was. Who took the first steps toward reconciliation? He did. Some will say that he sent the Son in his place, but this is a misunderstanding. Christ did not come apart from the Father who sent him. They were both involved together in the work of reconciliation.
And they respond:- May Christ listen to thy prayers, and be pleased with thy sacrifice, receive thy oblation, and honour thy priesthood, and grant unto us, through thy mediation,