John says that one issue of that Incarnation and permanent presence of the Lord Christ with us is that He hath given us an understanding that we may know Him that is true.' Now, I do not suppose that he means thereby that any absolutely new faculty is conferred upon men, but that new direction is given to old ones, and dormant powers are awakened. Just as in the miracles of our Lord the blind men had eyes, but it needed the touch of His finger before the sight came to them, so man, that was made in the image of God, which he has not altogether lost by any wandering, has therein lying dormant and oppressed the capacity of knowing Him from whom he comes, but he needs the couching hand of the Christ Himself, in order that the blind eyes may be capable of seeing and the slumbering power of perception be awakened. That gift of a clarified nature, a pure heart, which is the condition, as the Master Himself said, of seeing God--that gift is bestowed upon all who, trusting in the Incarnate Son, submit themselves to His cleansing hand.
In the Incarnation Jesus Christ gave us God to see; by His present work in our souls He gives us the power to see God. The knowledge of which my text speaks is the knowledge of' Him that is true,' by which pregnant word the Apostle means to contrast the Father whom Jesus Christ sets before us with all men's conceptions of a Divine nature; and to declare that whilst these conceptions, in one way or another, fall beneath or diverge from reality and fact, our God manifested to us by Jesus Christ is the only One whose nature corresponds to the name, and who is essentially that which is included in it.
But what I would dwell on especially for a moment is that this gift, thus given by the Incarnate and present Christ, is not an intellectual gift only, but something far deeper. Inasmuch as the Apostle declares that the object of this knowledge is not a truth about God but God Himself, it necessarily follows that the knowledge is such as we have of a person, and not of a doctrine. Or, to put it into simpler words: to know about God is one thing, and to know God is quite another. We may know all about the God that Christ has revealed and yet not know Him in the very slightest degree. To know about God is theology, to know Him is religion. You are not a bit better, though you comprehend the whole sweep of Christ's revelation of God, if the God whom you in so far comprehend remain a stranger to you. That we may know Him as a man knows his friend, and that we may enter into relations of familiar acquaintance with Him, Jesus Christ has come in the flesh, and this is the blessing that He gives us--not an accurate theology, but a loving friendship. Has Christ done that for you, my brother?
That knowledge, if it is real and living, will be progressive. More and more we shall come to know. As we grow like Him we shall draw closer to Him; as we draw closer to Him we shall grow like Him. So the Christian life is destined to an endless progress, like one of those mathematical spirals which ever climb, ever approximate to, but never reach, the summit and the centre of the coil. So, if we have Christ for our medium both of light and of sight, if He both gives us God to see and the power to see Him, we shall begin a course which eternity itself will not witness completed. We have landed on the shores of a mighty continent, and for ever and for ever and ever we shall be pressing deeper and deeper into the bosom of the land, and learning more and more of its wealth and loveliness. We know that we know Him that is true.' If the Son of God has come to us, we know God, and we know that we know Him. Do you?