Adam Clarke on Matthew 10:18

Ye shall be brought before governors, etc. - "This affords a striking proof of the prescience of Christ. Who could have thought, at that time, that these despised and illiterate men could excite so much attention, and be called upon to apologize for the profession of their faith before the tribunals of the most illustrious personages of the earth?" Wakefield.

By governors and kings we may understand, the Roman proconsuls, governors of provinces, and the kings who were tributary to the Roman government, and the emperors themselves, before whom many of the primitive Christians were brought.

For a testimony against them and the Gentiles - That is, to render testimony, both to Jews and Gentiles, of the truth and power of my Gospel.