John 10:13

Every bishop and pastor is bound to abide with his flock in the time of danger, and persecution, except himself be personally sought for, rather than his flock, or the flock itself forsake him. In such cases the pastor may fly, as the apostles did, and St. Athanasius and others. (St. Athanasius, Apol. de suâ fugâ.; St. Augustine, ep. 180.)

b. Their bad practices, the effect of these bad principles, v. 12. See here, (a.) How basely the hireling deserts his post; when he sees the wolf coming, though then there is most need of him, he leaves the sheep and flees. Note, Those who mind their safety more than their duty are an easy prey to Satan's temptations. (b.) How fatal the consequences are! the hireling fancies the sheep may look to themselves, but it does not prove so: the wolf catches them, and scatters the sheep, and woeful havoc is made of the flock, which will all be charged upon the treacherous shepherd. The blood of perishing souls is required at the hand of the careless watchmen.

Verses 10-18 Christ is a good Shepherd; many who were not thieves, yet were careless in their duty, and by their neglect the flock was much hurt. Bad principles are the root of bad practices. The Lord Jesus knows whom he has chosen, and is sure of them; they also know whom they have trusted, and are sure of Him. See here the grace of Christ; since none could demand his life of him, he laid it down of himself for our redemption. He offered himself to be the Saviour; Lo, I come. And the necessity of our case calling for it, he offered himself for the Sacrifice. He was both the offerer and the offering, so that his laying down his life was his offering up himself. From hence it is plain, that he died in the place and stead of men; to obtain their being set free from the punishment of sin, to obtain the pardon of their sin; and that his death should obtain that pardon. Our Lord laid not his life down for his doctrine, but for his sheep.