Read on...
1 Corinthians 1:26-31 (New International Version)
26Brothers, think of what you were when you were called. Not many of you were wise by human standards; not many were influential; not many were of noble birth. 27But God chose the foolish things of the world to shame the wise; God chose the weak things of the world to shame the strong. 28He chose the lowly things of this world and the despised things—and the things that are not—to nullify the things that are, 29so that no one may boast before him. 30It is because of him that you are in Christ Jesus, who has become for us wisdom from God—that is, our righteousness, holiness and redemption. 31Therefore, as it is written: "Let him who boasts boast in the Lord."[a]
Here is a modern paraphrase that strikes home...
1 Corinthians 1:26-31 (The Message)
26-31Take a good look, friends, at who you were when you got called into this life. I don't see many of "the brightest and the best" among you, not many influential, not many from high-society families. Isn't it obvious that God deliberately chose men and women that the culture overlooks and exploits and abuses, chose these "nobodies" to expose the hollow pretensions of the "somebodies"? That makes it quite clear that none of you can get by with blowing your own horn before God. Everything that we have—right thinking and right living, a clean slate and a fresh start—comes from God by way of Jesus Christ. That's why we have the saying, "If you're going to blow a horn, blow a trumpet for God."
