1 Corinthians 1:23-24

1:23 but we preach about a crucified Christ, a stumbling block to Jews and foolishness to Gentiles. 1:24 But to those who are called, both Jews and Greeks, Christ is the power of God and the wisdom of God.

1 Corinthians 2:2

2:2 For I decided to be concerned about nothing among you except Jesus Christ, and him crucified.

Galatians 6:12-14

6:12 Those who want to make a good showing in external matters are trying to force you to be circumcised. They do so only to avoid being persecuted for the cross of Christ. 6:13 For those who are circumcised do not obey the law themselves, but they want you to be circumcised so that they can boast about your flesh. 6:14 But may I never boast except in the cross of our Lord Jesus Christ, through which the world has been crucified to me, and I to the world.