John Gill

For yourselves know how ye ought to follow us,.... The apostle goes on to dissuade from that which denominates persons disorderly walkers, and exposes them to the censure of the church, and that partly by the example of the apostles, and partly by their command. He appeals to them, to their knowledge and judgment, it being a thing well known to them, that they ought to walk as they had the apostles for ensamples; for who should they follow but their spiritual fathers, shepherds, and guides? and especially so far as they were followers of Christ, as they were, in the case referred unto, working with their own hands: for we behaved not ourselves disorderly among you; they could appeal to them as witnesses, and God also, how holily, justly, and unblamably they walked among them; see Th1 2:10 and particularly, that they did not live an idle and inactive life among them.