Matthew 10:18

10:18 And you will be brought before governors and kings because of me, as a witness to them and the Gentiles.

Matthew 24:14

24:14 And this gospel of the kingdom will be preached throughout the whole inhabited earth as a testimony to all the nations, and then the end will come.

Matthew 8:4

8:4 Then Jesus said to him, “See that you do not speak to anyone, but go, show yourself to a priest, and bring the offering that Moses commanded, as a testimony to them.”