2 Corinthians 1:18

“But as God is true, etc..] It seems that the false apostles had insinuated, that as the apostle had not kept his word in coming to them as he had promised, that he was not to be depended upon in his ministry; that he might as well contradict himself, and deceive others in the one, as well as in the other: wherefore he appeals to God in a very solemn manner, calls him to witness to the truth of his doctrine; for these words may be considered as the form of an oath; or he argues from, the truth and faithfulness of God, to the certainty and invariableness of the word preached, who is so true and faithful as that he will never suffer his word to be yea and nay: for when the apostle says, that…”

“He adds this lest they might think his DOCTRINE was changeable like his purposes (the change in which he admitted in Co2 1:17, while denying that it was due to "lightness," and at the same time implying that not to have changed, where there was good reason, would have been to imitate the fleshly-minded who at all costs obstinately hold to their purpose). true--Greek, "faithful" (Co1 1:9). our word--the doctrine we preach. was not--The oldest manuscripts read "is not." yea and nay--that is, inconsistent with itself.”

“But as God is true - Tyndale renders this in accordance more literally with the Greek, “God is faithful; for our preaching unto you was not yea and nay.” The phrase seems to have the form of an oath, or to be a solemn appeal to God as a Witness, and to be equivalent to the expression “the Lord liveth,” or “as the Lord liveth.” The idea is,” God is faithful and true. He never deceives; never promises that which he does not perform. So true is it that I am not fickle and changing in my purposes.” This idea of the faithfulness of God is the argument which Paul urges why he felt himself bound to be faithful also. That faithful God he regarded as a witness, and to that God he could appeal on the…”

“Our word to you - The whole tenor of our doctrine. Hath not been yea and nay - Wavering and uncertain. 2 Corinthians 1:19”

“1:18-22 It was bad enough that Paul’s enemies at Corinth had attacked his character as unreliable and shifty (1:17). It was worse when they charged that his entire message was just as uncertain. In these verses Paul answers that allegation. 1:18-20 As surely as God is faithful: God can be trusted, as can his promises in Christ and his ministry through the apostles.”

“as: Co2 1:23, Co2 11:31; Joh 7:28, Joh 8:26; Jo1 5:20; Rev 3:7, Rev 3:14 word: or, preaching 2 Corinthians 1:19”