Titus says to "do your best" to speed Zenas the lawyer and Apollos on their way and to see that they lack nothing. He then says believers should learn to devote themselves to good works so as to help cases of urgent need. See Titus 3:13–14.
In Titus 3:12–14 Paul gives Titus practical instructions tied to travel and teamwork. Titus is to prepare to leave Crete once a replacement arrives, and to meet Paul in Nicopolis, where Paul plans to spend the winter. Titus must also ensure two coworkers, Zenas and Apollos, receive thorough support for their onward travel so they lack nothing. These verses come at the closing of the letter, after instructions about community life and public behavior, including doing what is good and being ready for helpful action (compare Titus 3:1).
These closing lines show early Christian work as organized, mobile, and cooperative. Paul coordinates personnel (who replaces Titus), sets a meeting location and season, and expects practical support to be provided to traveling coworkers. The passage also links “good works” to concrete needs, not just general kindness.
A careful answer keeps the immediate passage, the book's argument, and the whole-Bible storyline together, so the question is answered in context instead of as a detached idea.
Start with Titus 3:13-14, then read the surrounding section so the answer stays connected to the passage's flow.
13Send Zenas, the lawyer, and Apollos on their journey diligently, that nothing may be lacking for them.
14Let our people also learn to maintain good works for necessary uses, that they may not be unfruitful.