1Cor.1.26  For consider your call, brethren; not many of you were wise according to worldly standards, not many were powerful, not many were of noble birth;
2Cor.13.3  since you desire proof that Christ is speaking in me. He is not weak in dealing with you, but is powerful in you.

Hyper-concordance v1.1, by Sean Boisen. Scripture verses taken from the Revised Standard Version, copyright 1952, 1971.