There is an old maxim, and in many cases an excellent one. It is, "Think twice before you speak, and three times before you act." If we train ourselves to think what we are about to do, before we do it, and have understanding to know, and power to perform the good, we can thereby avoid the evil that is present with us. 1:92.
It is also a precious gift, that some people seem to be possessed of, to have knowledge enough not to talk until they can say something to advantage and benefit to themselves, or others, or both. 9:86.
If any are in the habit of taking the name of God in vain, cease doing so today, tomorrow and throughout the coming week, and so continue, and you will soon gain strength to overcome the habit entirely; you will gain power over your words. Some are in the habit of talking about their neighbors, of vending stories they know nothing about, only that Aunt Sally said that Cousin Fanny told Aunt Betsy that old Aunt Ruth said something or other, or somebody had had a dream; and by the time the story or dream reaches you, it has assumed the semblance of a fact, and you are very foolishly spending your time in talking about things that amount to nothing, or that you have no concern with. A report is started that such a one has done wrong, and, by the time it has gone its round, has become anointed with the salve of the backbiter and talebearer—become endowed with their spirit. One and another falls in with it and says, "That is true—your cause is just, you are exactly right, and the other is surely wrong," when they know nothing about the matter, thereby engendering entirely groundless ill feelings against each other. Before we condemn, we should wait until the heavens clearly indicate a fault in a father, brother, sister, wife, husband, or neighbor. And if heaven declares a fault, wait until the Holy Ghost manifests to you that such is a fault. Let the Father reveal to you that the person you are thinking or talking about is actually wrong. Traduce no person. When you know what right is, and are capable of correcting a person that is wrong, then it is time enough for you to judge. 6:97-98.
Cease Your Anger—No man or people possessing wisdom will give vent to wrath, for that is calculated to weaken, to destroy, to blot out of existence. 7:10.
Cease your anger, and sullenness of temper, and serve the Lord with cheerfulness, and singleness of heart. You need not expect salvation, except you can administer the same salvation to others, both in precept and example. If you expect compassion from me, administer the same to me. If you wish kind words and kind treatment from me, give me the same blessing you desire yourself; and that is the way you will be saved. 1:245.
Do not get so angry that you cannot pray; do not allow yourselves to become so angry that you cannot feed an enemy—even your worst enemy, if an opportunity should present itself. There is a wicked anger, and there is a righteous anger. The Lord does not suffer wicked anger to be in his heart; but there is anger in his bosom, and he will hold a controversy with the nations, and will sift them, and no power can stay his hand. 5:228.
If you give way to your angry feelings, it sets on fire the whole course of nature, and is set on fire of hell; and you are then apt to set those on fire who are contending with you. When you feel as though you would burst, tell the old boiler to burst, and just laugh at the temptation to speak evil. If you will continue to do that, you will soon be so masters of yourselves as to be able, if not to tame, to control your tongues—able to speak when you ought, and to be silent when you ought. 6:75.
Learn to Know Ourselves—The greatest lesson you can learn is to know yourselves. When we know ourselves, we know our neighbors. When we know precisely how to deal with ourselves, we know how to deal with our neighbors. You have come here to learn this. You cannot learn it immediately, neither can all the philosophy of the age teach it to you; you have to come here to get a practical experience and to know yourselves. You will then begin to learn more perfectly the things of God. No being can thoroughly know himself, without understanding more or less of the things of God; neither can any being learn and understand the things of God, without knowing himself: he must know himself, or he never can know God. 8:334.
But people cannot judge themselves as they can others, nor look upon their own conduct as they do upon the conduct of others. We must learn to look at ourselves, to judge ourselves, and know how to deal with ourselves and that will enable us to bring ourselves into perfect subjection to the law of Christ. 6:73.
There is a trait in the character of man which is frequently made manifest in the Saints. It is simply this—to see faults in others when we do not examine our own. When you see people, professing to be Latter-day Saints, examining the faults of others, you may know that they are not walking in the path of obedience as strictly as they should. 11:292.