Ben Sira 23:7

7 Hear, O ye children, the discipline of the mouth: he that keepeth it shall never be taken by his lips.

Ben Sira 23:7 In-Context

5 Turn away from me vain hopes and concupiscence, and Thou shalt hold him up that is desirous always to serve Thee.

6 Let not the greediness of the belly nor lust of the flesh take hold of me, and give not me Thy servant over into an impudent mind.

7 Hear, O ye children, the discipline of the mouth: he that keepeth it shall never be taken by his lips.

8 The sinner shall be left in his foolishness; both the evil speaker and the proud shall fall thereby.

9 Accustom not thy mouth to swearing, neither become used to the naming of the Holy One.