I came across this while studying. May it challenge you as it did me.
I understand this, first, in this sense: be separate unto Christ. These men were to leave their pursuits; they were to leave their companions; they were, in fact, to quit the world, that their one business might be, in their Master's name, to be fishers of men. We are not all called to leave our daily business, or to quit our families. That might be rather running away from the fishery than working at it in God's name. But we are called most distinctly to come out from among the ungodly, and to be separate, and not to touch the unclean thing. We cannot be fishers of men if we remain among men in the same element with them. Fish will not be fishers. The sinner will not convert the sinner. The ungodly man will not convert the ungodly man; and, what is more to the point, the worldly Christian will not convert the world. If you are of the world, no doubt the world will love its own; but you cannot save the world. If you are dark, and belong to the kingdom of darkness, you cannot remove the darkness. If you march with the armies of the wicked one, you cannot defeat them. I believe that one reason why the