We read that Christ was tempted of the devil in the wilderness. There are many things in this transaction which we may be said, in a certain sense, to know. But a man will not proceed far in analyzing this knowledge before he will discover that there are mysteries underlying the whole, which he cannot penetrate. He knows some of the surface relations. But the things themselves, in their essence, are unknown. Was Christ tempted, as the devil tempts us, by suggesting thoughts in the mind? Was the devil present in a bodily shape? Did he utter an audible voice, by undulating the air, as we do? Has he direct relations to matter, as we have? How could his offer of worldly power and riches be any real temptation to the Saviour, when Jesus knew that Satan had no power to make his offer good? There are indeed few things, in revelation or out of revelation, in mind or in matter, which we really and fully comprehend. If, therefore, we are to teach children nothing but what they understand, we must either teach them nothing at all, or our rule must be materially qualified. No one knows absolutely but God. Among created beings, there are almost infinite gradations of intelligence, although the highest created intelligence begins its range infinitely below that of the Divine mind. A given formula of words, therefore, may express very different degrees of truth according to the degree of intelligence of the party using it. A catechism or a creed may convey twenty different degrees of meaning to twenty successive persons, varying in age, character, and culture. Yet the very youngest and feeblest shall understand something of its meaning, while the wisest and oldest shall not have exhausted it. The young and feeble intellect, receiving a formula of truth with suitable explanations of its terms, takes in at once a portion of its meaning and gradually grows into a fuller comprehension of what it has received. A statement of doctrine received by a child at the age of five, conveys to him a few feeble rays of light. The same statement at the age of ten, means to him far more than it did before, while at twenty it is all luminous with knowledge.