Truth is vague and helpless until men believe it. Men are weak and frivolous till they believe in truth. To furnish truth to the believing heart, and to furnish believing hearts to truth, certainly there is no nobler office for a human life than that and the doc trine which I want to preach to you to-day is that the human life or human nature is so made as to ful fil just that office. How can we better tell the story of you who first believe in God yourself and then are drawn out to make your fellow-men believe in Him, and in making them believe in Him find your own belief grow steadier and clearer — how shall we better depict this human life which never learns anything without hearing other human lives clamoring to share the blessings of its knowledge than by recurring to the story of Peter, to whom, as he thought on the vision, the Spirit said, Behold three men seek thee.