Paul exhorts the Corinthians to “agree in what [they] say.” He calls them to be “united with the same understanding and the same conviction.” Here are two of the most common problems in the church body — disagreement and disharmony.
One person follows Paul; another follows Peter; another follows Apollos; one is Baptist, another is Methodist; another is Lutheran — each rivals of the other in a vain pursuit of human glory.
Paul asks the key question — “Was it Paul who was crucified for you?” (1 Corinthians 1: 12) Then, he reminds the Corinthian church and us that “God chooses what is foolish in the world to shame the wise, and God chooses what is weak in the world to shame the strong. God chooses what is insignificant and despised in the world — what is viewed as nothing — to bring to nothing what is viewed as something, so that no one can boast in His presence.” (1 Corinthians 1: 27 – 29)
Boasting leads to disunity and disharmony among brothers and sisters in Christ. “The one who boasts must boast in the Lord” (1 Corinthians 1: 30) and not in a human church group or leader. Remember! Your denomination, your church leader was not crucified for you.
Paul goes so far as to say he deliberately comes to the Corinthians with less than brilliant speech and wisdom; instead he says, “I come to you in weakness, in fear, and in much trembling. My speech and my proclamation demonstration by the Spirit, so that you faith may not be based on men’s wisdom but on God’s power.” (1 Corinthians 2: 3 – 5)
And here is the key to harmony and unity — “faith based on… God’s power.”