John Chrysostom, on 2Cor 1:3

“Blessed be the God and Father of our Lord Jesus Christ, the Father of mercies, and the God of all comfort.”

“"Blessed be the God and Father of our Lord Jesus Christ, the Father of mercies and God of all comfort." Do you ask, how is this aptly to the purpose in hand? I reply, Very much so; for observe, they were greatly vexed and troubled that the Apostle had not come to them, and that, though he had promised, but had spent the whole time in Macedonia; preferring as it seemed others to themselves. Setting himself then to meet this feeling against him, he declares the cause of his absence; not however directly stating it, as thus; "I know, indeed, I promised to come, but since I was hindered by afflictions forgive me, nor judge me guilty of any sort of contempt or neglect towards you:" but after another manner he invests the subject at once with more dignity and trustworthiness, and gives it greatness by the nature of the consolation, so that thereafter they might not so much as ask the reason of his delay. Just as if one, having promised to come to one he longed for, at length arriving after dangers innumerable, should say, "Glory to Thee, O God, for letting me see the sight so longed for of his dear countenance! Blessed be Thou, O God, from what perils hast Thou delivered me!" for such a doxology is an answer to him who was preparing to find fault, and will not let him so much as complain of the delay; for one that is thanking God for deliverance from such great calamities he cannot for shame drag to the bar, and bid clear himself of loitering. Whence Paul thus begins, "Blessed be the God of mercies," implying by the very words that he had been both brought into and delivered from mighty perils. For as David also doth not address God every where in one way or with the same titles; but when he is upon battle and victory, "I will love Thee, he saith, O Lord my strength; the Lord is my buckler:" when again upon delivery from affliction and the darkness which overwhelmed him, "The Lord is my light and my salvation;" and as the immediate occasion suggests, he names Him now from His loving-kindness, now from His justice, now from His righteous judgment:-in like way Paul also here at the beginning describeth Him by His loving-kindness, calling Him "the God of mercies," that is, "Who hath showed me so great mercies as to bring me up from the very gates of death." And thus to have mercy is the peculiar and excellent attribute of God, and the most inherent in His nature; whence he calleth Him the "God of mercies." And observe, I pray you, herein also the lowly-mindedness of Paul. For though he were in peril because of the Gospel he preached; yet saith he not, he was saved for his merit, but for the mercies of God.”

Imported from an open dataset — not yet checked against the printed edition.