Ben Sira 23:7-17

7 Listen, my children, to instruction concerning speech; the one who observes it will never be caught.
8 The sinner is overtaken through his lips, the reviler and the arrogant are tripped by them.
9 Do not accustom your mouth to oaths, and do not habitually utter the name of the Holy One;
10 for as a servant who is continually examined under torture will not lack bruises, so also the man who always swears and utters the Name will not be cleansed from sin.
11 A man who swears many oaths will be filled with iniquity, and the scourge will not leave his house; if he offends, his sin remains on him, and if he disregards it, he sins doubly; if he has sworn needlessly, he will not be justified, for his house will be filled with calamities.
12 There is an utterance which is comparable to death; may it never be found in the inheritance of Jacob! For all these errors will be far from the godly, and they will not wallow in sins.
13 Do not accustom your mouth to lewd vulgarity, for it involves sinful speech.
14 Remember your father and mother when you sit among great men; lest you be forgetful in their presence, and be deemed a fool on account of your habits; then you will wish that you had never been born, and you will curse the day of your birth
15 A man accustomed to use insulting words will never become disciplined all his days.
16 Two sorts of men multiply sins, and a third incurs wrath. The soul heated like a burning fire will not be quenched until it is consumed; a man who commits fornication with his near of kin will never cease until the fire burns him up.
17 To a fornicator all bread tastes sweet; he will never cease until he dies.
Revised Standard Version of the Bible, copyright 1952 [2nd edition, 1971] by the Division of Christian Education of the National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved.