In 2 Corinthians 4:2, Paul says he uses open statement of truth—matching his claim to have made everything plain.

In 2 Corinthians 10:10, critics call his speech contemptible — directly echoed when Paul admits being untrained in speech.

In 2 Corinthians 5:11, Paul persuades with knowledge and clear conscience—supporting his plain-speaking defense.

In 2 Corinthians 6:6, Paul lists knowledge among his credentials — consistent with his assertion of having knowledge despite being untrained in speech.

In 1 Corinthians 2:1-3, Paul deliberately avoided lofty speech—directly parallel to his admission of unskilled speaking here.

In 1 Corinthians 2:13, Paul says his words are taught by the Spirit—explaining the source of his knowledge despite lack of eloquence.

In Exodus 4:10, Moses similarly claims to be slow of speech — both apostles plead lack of eloquence while possessing divine knowledge.

In 1 Corinthians 14:6, Paul prioritizes speaking with knowledge over mere tongues — reinforcing his claim that knowledge matters more than speech.

In Ephesians 3:4, Paul claims insight into Christ's mystery—reinforcing his assertion of knowledge in 2 Corinthians 11:6.

In 2 Peter 3:15, Peter attributes wisdom to Paul—externally validating his claim to knowledge.