From the Pulpit...
Living According to Sound Doctrine, Part 1 - Matt Postiff
Paul instructs Titus as to how he is to teach sound doctrine. You might imagine that this describes the ministry Titus is to have directly to the churches in Crete, as if he is planning to visit each one and do some preaching and teaching. That is not out of the realm of possibility, but there is another option. Paul could well be telling Titus how to train the elders he was appointing in the churches. He was to teach them so that they in turn could pass this sound doctrine to their churches. This would multiply Titus’s efforts so that he could reach more churches. In this scenario, he would be following the same pattern as Paul taught Timothy in 2 Timothy 2:2.