Those who become witnesses of Jesus Christ still remain witnesses of Jehovah. They are first witnesses of Jehovah God before witnesses of his Son Jesus Christ. They are the Christian witnesses of Jehovah with a more wonderful message and in a more privileged position than were those who were faithful witnesses of Jehovah before the coming of his Son Jesus Christ.​—Heb. 11:1 to 12:2.

THE CONTENT OF THEIR TESTIMONY, THEN AND NOW

16. Why was it necessary for Jesus’ Jewish disciples to wait in Jerusalem before entering in upon their work of bearing witness to Jesus?

¹⁶ Those disciples of Jesus Christ who heard his final command on the Mount of Olives and who saw him ascend heavenward faithfully obeyed what he told them to do. They waited at Jerusalem till they received the holy spirit from God through Christ with which to bear witness to Jesus, exalting Jehovah God still more by this witness concerning his Messianic Son Jesus. Not in their own strength, but in the help of Jehovah’s spirit they trusted in order to deliver their testimony, acting as Christian prophets. Just as the angel told the apostle John, in Revelation 19:10: “All I am is a fellow slave of you and of your brothers who have the work of witnessing to Jesus. Worship God; for the bearing witness to Jesus is what inspires prophesying.”

17, 18. (a) From where were those first-century disciples to start testifying about Jesus Christ and Jehovah, and after receiving what? (b) What did Peter testify about Jesus at Pentecost?

¹⁷ All those who became disciples of Christ back there in apostolic times during the first century C.E. were able to testify concerning Jesus Christ together with his heavenly Father, Jehovah God. Testify what? The written record that has the very thing that “inspires prophesying” tells us what they testified, what their testimony contained.