Albert Barnes Commentary Titus 3:13

"Set forward Zenas the lawyer and Apollos on their journey diligently, that nothing be wanting unto them." — Titus 3:13 (ASV)

Bring Zenas the lawyer. This person is not mentioned elsewhere in the New Testament, and nothing more is known of him. He belonged, doubtless, to that class of persons so often mentioned in the New Testament as lawyers; that is, who were regarded as qualified to expound the Jewish laws.

It does not mean that he practiced law in the modern sense of that phrase. He had doubtless been converted to the Christian faith; and it is not improbable that there were Jews at Nicopolis, and that Paul supposed he might be particularly useful among them.

And Apollos.

He was also well-skilled in the laws of Moses, being mighty in the Scriptures (Acts 18:24), and he and Zenas appear to have been traveling together. It would seem that they had already been on a journey, probably preaching the gospel, and Paul supposed that they would be in Crete, and that Titus could aid them.

Diligently. (2 Timothy 4:9). Greek: Speedily; that is, facilitate their journey as much as possible.

That nothing be wanting unto them. Nothing necessary for their journey. Paul desired that they might meet with hospitable treatment from Christians in Crete, and might not be embarrassed for the lack of that which was necessary for their journey. It would seem most probable that they had been sent by Paul on a visit to the churches.