It is my intention to preach several discourses this evening, but how many I do not know.

I will in the first place bear testimony to the truth of many remarks made by brother Hunter, and especially his exhortation to the Seventies and Elders, and those men who wish to go on missions. I wish also to urge the necessity of your proceeding on your missions immediately, and of going to the place of your destination full of the Holy Ghost, preaching righteousness to the people; and while you do this, live up to the principles you preach, that you may teach also by your example, as well as by precept. Go, ye Elders, and now consider yourselves from this time forth missionaries. If the Gospel is in you like a flaming fire, to be poured upon the people, gather your neighbors together, and give your brethren an invitation to your house, and set before them the duties of man; and preach, if you can speak but for five minutes, occupying that time to the best advantage. Continue to preach, study, and learn, by faith and prayer, until your minds and mouths are opened, and you understand most perfectly the love of Christ.

Journal of Discourses/Volume 1/Self-Government—Mysteries, etc.

It is not uncommon for Elders to say, "If I could have a mission, and be sent among strangers, I could speak to them, because they have not been instructed in the way of life and salvation; I could lay before them the principles of the Gospel, which have been taught to me, without that diffidence of feeling, and fear, which I experience while speaking to my brethren." It is very true that the first principles of the Gospel taught by the Elders of this Church are easy to be understood, compared with what it is to preach them to our families, or to our neighborhood, and to govern and control ourselves by the principles of righteousness which the Gospel inculcates. Again, to gather the Saints, to preach the Gospel to the world, and convince them of the truth, are much easier tasks than to convince men that you can master yourself, and practise the moral principles inculcated by your religion. That is a small portion of the duty required of you in order to obtain crowns of glory, immortality, and eternal lives. I will here remark, that it is natural for the people to desire to know a great deal of the MYSTERIES; this, however, is not universally the case, though it is so with a great many of the Elders of Israel. I do not suppose it will apply to those who compose this congregation; your object in being here this evening is not to hear some great mystery of the Kingdom, which you never understood before. The greatest mystery a man ever learned, is to know how to control the human mind, and bring every faculty and power of the same in subjection to Jesus Christ; this is the greatest mystery we have to learn while in these tabernacles of clay. It is more necessary for the Elders to learn and practise upon this lesson in the midst of the Saints at head quarters than in the world; for their facilities for learning are much greater, and I will tell you wherein. Let a Bishop, a High Priest, a President of any Stake or Quorum, any who are Elders in Israel, or any individual Saint from the first to the last of them, fall into error, and it is at once made manifest; he cannot pursue that course any further, for he is where he can learn his duties, and know how to walk straight in the paths of righteousness. Here is the place for you to teach great mysteries to your brethren, because here are those who can correct you. This fault the Elders of Israel do not fall into in this Tabernacle, although they may in private houses and neighborhoods. When a man is capable of correcting you, and of giving you light, and true doctrine do not get up an altercation, but submit to be taught like little children, and strive with all your might to understand. The privileges of those who dwell here are greater than the privileges of those who are abroad. When your duties call you into foreign lands, and you there exhaust your stock of knowledge and wisdom, and you are not in possession of the keys to obtain that instruction which you desire, it is because you are far from the right fountain—far from the body, where all the members are in lively operation—where the eye can see, the ear hear, the nose smell, and the mouth speak, and so forth. When your face is turned from the body, let mysteries alone, for this is the only place for you to be corrected if wrong. Preach the simple, unadorned truth; work out your salvation with diligence, and do that which will guarantee you a warranted deed, an undeniable title to eternal lives.

Journal of Discourses/Volume 1/Self-Government—Mysteries, etc.