By the word prophet is meant a teacher or leader of the people; any one who sets himself up, or is commissioned by those in authority, as an expounder of the sense of the Scriptures, or of the principles of morality or of religion, so as to lead others to adopt his opinions, and act according to his directions. The office of prophet, or teacher, is the most important of all in human society. For, if we are rightly taught and follow the teaching, everything goes on harmoniously, and conduces to the best result; the greatest amount of substantial happiness in this world, and the securing of our immortal destiny in heaven. If we are wrongly taught, our great blessings are turned into curses, and our lives are failures, both for this world and the next. {245} And our Lord Jesus Christ took especial pains to provide for this great need of ours. He selected His twelve Apostles, kept them with Himself during all the time of His public ministry, instructed them by word and example, and sent them out to teach with this full and explicit commission, "Go ye into all the world, and preach the Gospel to every creature, teaching them to observe all things whatsoever I have commanded you: and lo I am with you all days, even to the consummation of the world." [Footnote 94] [Footnote 94: St. Mark xvi. 15 and St. Matt, xxviii. 20.] If we desire to know them who are the true prophets, we have the means of finding out: they are the lawful successors of the Apostles, the priesthood of the Holy Church. And, on the other hand, we have the means of determining who are the false prophets or teachers: all those who are in opposition to this lawful body of teachers, commissioned by God Himself to teach us. The priesthood of the Holy Church, then, are our teachers in the principles and practice of religion, and of morality, which is embraced in religion. They are the ones to teach us our duty, in all respects, as individuals, and as members of society; our duties to ourselves, to our fellow-men, to our families, to the government or state in which we live, as well as to God. {246} This is what many people do not seem to understand. They say, Let the clergy confine themselves to their own sphere, to the teaching of religion, and let other things alone. Why should they meddle with questions of politics or government? Why should they interfere with private or family affairs? Why should they say anything about a man's business, or try to interfere with his personal liberty to do this or that? Now, whence do these objections arise? From the mistaken notion that religion deals exclusively with the relations of the individual to his God, and has nothing to do with society or government; that there is divorce between politics and religion; that the law of God is separable from human laws.