Revelation 1:2

English Standard Version

2 who bore witness to the word of God and to the testimony of Jesus Christ, even to all that he saw. (Joh 19:35; 1Co 1:6; Re 1:11; Re 1:19; Re 6:9; Re 12:17; Re 19:10)

New International Version

2 who testifies to everything he saw—that is, the word of God and the testimony of Jesus Christ.

New Int. Readers Version

2 John gives witness to everything he saw. The things he gives witness to are God's word and what Jesus Christ has said.

King James Version

2 Who bare record of the word of God, and of the testimony of Jesus Christ, and of all things that he saw.