We have seen that the Bible makes it plain that the Holy Spirit is a Divine Person and that He is an entirely separate personality from the Father and from the Son. In other words, that _there are three divine Persons in the Godhead_. It has oftentimes been said that the doctrine of the Trinity is not taught in the Bible. It is true that the doctrine of the Trinity is not directly taught in the Bible in so many words, but the doctrine of the Trinity is simply the putting together of truths that are clearly and unmistakably taught in the Bible. It is clearly taught in the Bible that there is but one God (Deuteronomy 6:4). But it is taught with equal clearness, as we have seen to-day, that there are three Divine Persons, the Father, the Son and the Holy Ghost; and the doctrine of the Trinity is the putting together of these truths which are taught with equal plainness. But, some one may ask, How can God be three and one at the same time? The answer to this question is very simple and easily understandable. He cannot be three in one in the same sense, nor does the Bible teach that He is. But in what sense can He be one and three? A perfectly satisfactory answer to this question is manifestly impossible from the very nature of the case—first, because God is Spirit and numbers belong primarily to the physical world, and _difficulty must always arise when we attempt to conceive of spiritual being in the forms of physical thought_. In the second place, a perfectly satisfactory answer to the question is impossible because God is infinite and we are finite. "God dwells in the light that no man can approach unto," and _our attempts at a philosophical explanation of the Trinity of God is an attempt to put the facts of infinite being into the forms of finite thought, and of necessity such an attempt can at the very best be only partially successful_. This much we know, that God is essentially one, and also that there are three Persons in this one Godhead. _There is but one God, but this one God makes Himself known to us as three distinct Persons—Father, Son and Holy Spirit._ There is one God, eternally existing, and manifesting Himself in three Persons—Father, Son and Holy Spirit. If we were to go into the realm of philosophy, it could be shown that from the very necessities of the case, that if God were to be God, there must be in the eternal Godhead before the creation of finite beings a multiplicity of persons; for otherwise God could not love, for there would be no one to love, and therefore God could not be God. The ease with which one can grasp the Unitarian conception of God is not in its favour but against it. Any god who could be thoroughly comprehended by a finite mind would not be an infinite God. It would be impossible for a thoroughly intelligent mind to really worship a god whom he could thoroughly understand. If God is to be really God, He must be beyond our complete understanding.