How does Paul describe the nature of true preaching?

In his letters, particularly in 1 Corinthians, Paul emphasizes that true preaching is not characterized by eloquence or human wisdom but is firmly focused on Christ and His crucifixion. In 1 Corinthians 1:17, Paul states he was sent to preach the gospel, not to engage in debates or showcase his rhetorical skills. He believed that the cross must remain central, as it is through the gospel that God’s power operates in the hearts of the faithful. Authentic preaching becomes a vehicle for the Holy Spirit, illuminating the truth of the gospel rather than obscuring it with flowery language or human cunning.