We have, however, the highest authority for the use of objects in teaching religious truths. Our Saviour himself practised this mode of teaching. It will be remembered that when the crafty Scribes and Pharisees sought to entangle him in his talk, and proposed the question--"Master, is it lawful to give tribute unto Cæsar or not?" he, perceiving their wickedness, said, "Why tempt ye me, ye hypocrites? Show me the tribute-money. And they brought unto Him a penny." Why did the divine Redeemer, who never did a superfluous thing, or spoke a superfluous word,--why did He, who is infinite in wisdom, call for this penny? We may safely reply, Because it was divinely _best_ and needful. He wanted to bring to bear the two great learning senses, to wit, _seeing_ and _hearing_. He then directed the eyes of these scheming men to the coin, with this pointed question: "Whose is this image and superscription? They said unto him, Cæsar's." Then came the inimitable _application_ of the lesson--without which every lesson is a failure--viz.: "Render therefore unto Cæsar the things which be Cæsar's, and unto God the things which be God's." We are told that "when they had heard these words, they marvelled, and left him, and went their way." The lesson was conclusive. At another time, you remember that our Saviour "called a little child unto him and set him in the midst of them," to teach his disciples the answer to their query, "Who is the greatest in the kingdom of heaven?" Here the little child was the object. The lesson is obvious to all. Even in the memorial service of our Saviour's death, he called for two _objects_--the bread and the wine. It was divinely necessary.