The Lord said, "If any man serve Me, let him follow Me." Service is not doing a great deal, but following the Master, and the world and half-hearted Christians do not like that. There is plenty of doing in the world, but "If any man serve Me, let him follow Me." Paul wanted to serve every way, but we find the Spirit forbidding him to go into Bithynia or Troas, and yet, two years afterward, we read that "All they which dwelt in Asia heard the word." God's work was to he done, but it was to he in His time and of His ordering. His servant had only to follow in obedience. It was the same with Moses. Nature would say of him, Why not stay in Pharaoh's court, that the people there may be converted, instead of leaving it? Flesh cannot understand what faith leads to. Afterward he goes out in all the earnestness of his spirit; natural energy comes in, but then there is no deliverance. Moses has to go and keep sheep for forty years, to be broken down and made nothing of; and what were Israel to do all that time? To wait. Then, when he comes back to serve them, how is it done? There is the flesh appearing in another way. "Lord, I am not eloquent." Then Aaron is sent back with him, and the work is done in the power of God.