'Preach Christ' in the Bible

Philip went down to the city of Samaria, and began to preach Christ there.

For whereas the Jews demand signs, and the Greeks seek wisdom, We preach Christ crucified,

But we preach Christ crucified, unto the Jews a stumblingblock, and unto the Greeks foolishness;

But unto them which are called, both of Jews and Greeks, we preach Christ the power of God, and the wisdom of God.

Furthermore, when I came to Troas to preach Christ's gospel, and a door was opened unto me of the Lord,

Some indeed preach Christ even of envy and strife; and some also of good will:

The one preach Christ of contention, not sincerely, supposing to add affliction to my bonds:

but the former preach Christ [insincerely] out of selfish ambition [just self-promotion], thinking that they are causing me distress in my imprisonment.