John 14:26

But the Comforter, which is the Holy Ghost, whom the Father will send in My name, He shall teach you all things, and bring all things to your remembrance, whatsoever I have unto you.

If there is no love for Christ in the heart of a man, because faith never found entrance into that heart, then there can be no keeping of His words; and if not of His, then neither of His Father's, whose words He was teaching, who had sent Him. Without the love toward Christ which grows out of faith there can be no really good works; all the works of unbelievers which have the appearance of keeping the words of Christ are "splendid vices," with which they deceive others and often themselves. Jesus, having now promised the Comforter to His disciples, having given the assurance also that He Himself would come and reveal Himself to His disciples and that He, with the other persons of the Godhead, would make His abode with the believers, tells them also what special work the Spirit would do in their case. He had spoken many things to them during His ministry, and especially in the last days, whose importance and significance they had not grasped. Therefore that same Comforter, the Holy Ghost, whom the Father would send in His name, would serve as their teacher, giving them the understanding of all things which they still had in memory, and recalling to their minds such things as they had forgotten. Note: The Father sends the Spirit, but in the name of Jesus; the same intimate relation between the Father and the Son again appears. Because Jesus is exalted to the right hand of God and is acting as the Advocate of mankind with the Father, for that reason the Spirit is sent in His name. That was the assurance which comforted and encouraged the apostles, and which serves also for our comfort. For with such a promise to back them up in their teaching, we know that the apostles could not fail in their proclamation of the great truths of God. We may rely without the slightest hesitation and doubt upon the words that were written by the apostles or under their direction, knowing that the Holy Spirit, the Spirit of the Father and the Son, directed and inspired them.