Ben Sira 23:9

9 Do not accustom your mouth to oaths, and do not habitually utter the name of the Holy One;

Ben Sira 23:9 In-Context

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.