Jesus repeatedly promised the apostles that the "Comforter" or the "Spirit of Truth"[26] should be given unto them; and this assurance was made specific and final immediately prior to the ascension. He "commanded them that they should not depart from Jerusalem, but wait for the promise of the Father, which, saith he, ye have heard of me. For John truly baptized with water; but ye shall be baptized with the Holy Ghost not many days hence. * * * Ye shall receive power, after that the Holy Ghost is come upon you: and ye shall be witnesses unto me."[27] The promise was fulfilled at the succeeding Pentecost when the apostles received power never before known to them, the endowment being marked by an outward manifestation of fiery tongues.[28] The apostles thereafter promised the Holy Ghost to those who sought salvation. Peter's exhortation to the multitude, on that same memorable day of Pentecost, is particularly explicit and forceful. In answer to the inquiry, "Men and brethren, what shall we do?" the chief of the apostles replied: {76} "Repent, and be baptized every one of you in the name of Jesus Christ for the remission of sins, and ye shall receive the gift of the Holy Ghost."[29] A similar assurance as to the higher endowment of the Holy Ghost following the ordinance of water-baptism was made by Nephite prophets,[30] and by the resurrected Christ in His visit to the people of the western continent.[31] And later still this has been repeated through the Church in the current dispensation, that of the fulness of times: "I say unto you again," said the Lord in a revelation to certain elders of the Church, "that every soul who believeth on your words, and is baptized by water for the remission of sins, shall receive the Holy Ghost."[32] By way of summary let it be repeated: The Church of Jesus Christ of Latter-day Saints holds as a fundamental doctrine, attested and proved by scripture both ancient and modern, that compliance with _the laws and ordinances of the Gospel_ is an absolute and irrevocable requirement for admission into the Kingdom of God, or in other words, for the securing of individual salvation to the souls of men, and that this requirement is universal, applying alike to every soul that has attained to age and powers of accountability in the flesh, in whatever period or dispensation that soul has lived in mortality. It follows as a necessary consequence that if any soul has failed, either through ignorance or neglect, to render obedience to these requirements, the obligation is not removed by death. VICARIOUS SERVICE OF THE LIVING FOR THE DEAD