For I {b} determined not to know any thing among you, save Jesus Christ, and him crucified.

(b) I did not profess any knowledge but the knowledge of Christ and him crucified.

People's New Testament

2:2 Save Jesus Christ, and him crucified. All his preaching centered upon this great theme, To the Greeks foolishness, and to the Jews a stumbling-block (1Co 1:23).

Wesley's Notes

2:2 I determined not to know anything - To wave all my other knowledge, and not to preach anything, save Jesus Christ, and him crucified - That is, what he did, suffered, taught. A part is put for the whole.

Jamieson-Fausset-Brown Bible Commentary

2. The Greek implies, "The only definite thing that I made it my business to know among you, was to know Jesus Christ (His person) and Him crucified (His office)" [Alford], not exalted on the earthly throne of David, but executed as the vilest malefactor. The historical fact of Christ's crucifixion had probably been put less prominently forward by the seekers after human wisdom in the Corinthian church, to avoid offending learned heathens and Jews. Christ's person and Christ's office constitute the sum of the Gospel.

Matthew Henry's Concise Commentary

2:1-5 Christ, in his person, and offices, and sufferings, is the sum and substance of the gospel, and ought to be the great subject of a gospel minister's preaching, but not so as to leave out other parts of God's revealed truth and will. Paul preached the whole counsel of God. Few know the fear and trembling of faithful ministers, from a deep sense of their own weakness They know how insufficient they are, and are fearful for themselves. When nothing but Christ crucified is plainly preached, the success must be entirely from Divine power accompanying the word, and thus men are brought to believe, to the salvation of their souls.