Kimbanguist theology affirms 1 John 5:7-8 (the Comma Johanneum) as part of authoritative Scripture. The passage's explicit trinitarian formula — 'There are three that testify: the Father, the Word, and the Holy Spirit, and these three are one' — is received as biblical testimony to the Trinity. While Kimbanguist teaching may be aware that this phrase does not appear in the earliest Greek manuscripts, the tradition's reception of this passage is authoritative for the church's understanding of the triune God.

The trinitarian emphasis in Kimbanguism makes the Comma Johanneum's explicit teaching valuable and authoritative for the movement's faith and practice. The passage is used to affirm the full divinity of Father, Son, and Spirit and their essential unity.