17 For Christ did not send me to baptize but to preach the gospel, and not with words of eloquent wisdom, lest the cross of Christ be emptied of its power.18 For the word of the cross is folly to those who are perishing, but to us who are being saved it is the power of God.
Galatians 6
14 But far be it from me to boast except in the cross of our Lord Jesus Christ, by which the world has been crucified to me, and I to the world.
Philippians 2
5 Have this mind among yourselves, which is yours in Christ Jesus,6 who, though he was in the form of God, did not count equality with God a thing to be grasped,7 but made himself nothing, taking the form of a servant, being born in the likeness of men.8 And being found in human form, he humbled himself by becoming obedient to the point of death, even death on a cross.