Acts 16:27

The keeper of the prison - would have killed himself - Every jailor was made responsible for his prisoner, under the same penalty to which the prisoner himself was exposed. The jailor, awaking, and finding the prison-doors open, taking it for granted that all the prisoners had made their escape, and that he must lose his life on the account, chose rather to die by his own hand than by that of others. For it was customary among the heathens, when they found death inevitable, to take away their own lives. This custom was applauded by their philosophers, and sanctioned by some of their greatest men.

Would have killed himself - This was done in the midst of agitation and alarm. He supposed that the prisoners had fled. He presumed that their escape would be charged on him. It was customary to hold a jailor responsible for the safe keeping of prisoners, and to subject him to the punishment due them if he suffered them to escape. See Acts 12:19. It should be added that it was common and approved among the Greeks and Romans for a man to commit suicide when he was encompassed with dangers from which he could not escape. Thus, Cato was guilty of self-murder in Utica; and thus, at this very place - Philippi - Brutus and Cassius, and many of their friends, fell on their own swords, and ended their lives by suicide. The custom was thus sanctioned by the authority and example of the great; and we are not to wonder that the jailor, in a moment of alarm, should also attempt to destroy his own life. It is not one of the least benefits of Christianity that it has proclaimed the evil of self-murder, and has done so much to drive it from the world.