2-е Коринфянам 1:19

Proof of the unchangeableness of the doctrine from the unchangeableness of the subject of it, namely, Jesus Christ. He is called "the Son of God" to show the impossibility of change in One who is co-equal with God himself (compare Sa1 15:29; Mal 3:6). by me . . . Silvanus and Timotheus--The Son of God, though preached by different preachers, was one and the same, unchangeable. Silvanus is contracted into Silas (Act 15:22; compare Pe1 5:12). in him was yea--Greek, "is made yea in Him"; that is, our preaching of the Son of God is confirmed as true in Him (that is, through Him; through the miracles wherewith He has confirmed our preaching) [GROTIUS]; or rather, by the witness of the Spirit which He has given (Co2 1:21-22) and of which miracles were only one, and that a subordinate manifestation.

After the introduction (Co2 1:1, Co2 1:2) the apostle begins with the narrative of his troubles and God's goodness, which he had met with in Asia, by way of thanksgiving to God (Co2 1:3-6), and for the edification of the Corinthians (Co2 1:7-11). Then he attests his and his fellow-labourers' integrity (Co2 1:12-14), and afterwards vindicates himself from the imputation of levity and inconstancy (Co2 1:15-24).

1:19 Silas was a well-known Christian leader from the church in Antioch (see Acts 15:22, 27, 32; 1 Thes 1:1; 2 Thes 1:1; 1 Pet 5:12).