In that last discourse of our Savior, to which we have already so fully referred,—that discourse which was an immediate anticipation and prophecy of Pentecost,—this subject is presented in a form of great interest and prominence. In fact, the thoughtful reader will find that entire discourse to center upon the two correlative ideas of the unity of the Persons in the Godhead, and the unity of believers, in Christ. Moreover, these two doctrines are presented as sustaining the most intimate relation to each other. In answer to Philip’s request, “Lord show us the Father,” Jesus emphasizes with reiteration his own unity with the Father, and exhorts the disciples, “Believe me that I am in the Father and the Father in me.” Then, having promised to secure for them the presence and illumination of the Comforter, he says, “Yet a little while and the world seeth me no more, but ye see me; because I live, ye shall live also. At that day, _ye shall know_ that _I_ am _in my Father_, and _ye in me and I in you_.”—John xiv, 8-11, 19, 20. This he illustrates by a parable. “I am the vine, ye are the branches. He that abideth in me, and I in him, the same bringeth forth much fruit, for without me (severed from me) ye can do nothing.”—Ib. xv, 1-8. In the wonderful prayer which closed that discourse, Jesus recurs to this theme, in language which from any other lips would have seemed profane, so closely does he identify us with the glory of the Godhead. “Neither pray I for these alone, but for them also which shall believe on me through their word, that they all may be one; as thou Father art in me, and I in thee, that they also may be one in us; that the world may believe that thou hast sent me. And the glory which thou gavest me I have given them; that they may be one, even as we are one; I in them, and thou in me, that they may be made perfect in one; and that the world may know that thou hast sent me, and hast loved them as thou hast loved me.”—Ib. xvii, 20-23. The “glory” which the Father gave the Son and Jesus gives his people, “that they may be one,” is the Holy Spirit, who is called “the Spirit of glory and of God,” who rests on his people (1 Peter iv, 14), and “the glory of the Father,” by whom Christ was raised from the dead. (Rom. vi, 4. Compare viii, 11; and 1 Peter iii, 18.) Such is the relation which by the baptism of the Spirit is established between Christ and the Father and believers. Touching the manner and process of it, the following are the most important points.