"Blessed are they that have not seen, and yet have believed" (John 20:29).

How strong is the snare of the things that are seen, and how necessary for God to keep us in the things that axe unseen! If Peter is to walk on the water he must walk; if he is going to swim, he must swim, but he cannot do both. If the bird is going to fly it must keep away from fences and the trees, and trust to its buoyant wings. But if it tries to keep within easy reach of the ground, it will make poor work of flying.

God had to bring Abraham to the end of his own strength, and to let him see that in his own body he could do nothing. He had to consider his own body as good as dead, and then take G............