But I certify you, brethren, that the gospel which was preached of me is not after man.
The apologetic portion here begins (Ellicott).
I certify - I make known to you, as to the Gospel which was preached by me, that it is not after [according to: kata (G2596)] man; not of х apo (G575)], by х dia (G1223)], or from х para (G3844)] man (Galatians 1:1; Galatians 1:12). It is not influenced by mere human considerations, as it would be, if of human origin. Brethren. He not until now calls them so.