Colossians 4:6 instructs speech seasoned with grace, complementing the desire for clear proclamation — both about effective gospel communication.

Acts 4:29 prays for boldness to speak God's word — directly parallel to Paul's request for bold, clear proclamation of the mystery.

2 Corinthians 3:12 declares great boldness in speech — closely parallels Paul's desire to speak the mystery with clarity and openness.

Ephesians 6:20 is a near-identical prayer for boldness in declaring the mystery, directly paralleling Paul's request here.

1 Corinthians 2:4 emphasizes reliance on the Spirit's power over persuasive words, a parallel concern for the manner of proclamation.