Sirach 22:31LXX

29In the time of his trouble continue faithful to him, that thou mayst also be heir with him in his inheritance.

30As the vapour of a chimney, and the smoke of the fire goeth up before the fire: so also injurious words, and reproaches, and threats, before blood.

31I will not be ashamed to salute a friend, neither will I hide myself from his face: and if any evil happen to me by him, I will bear it.

32But every one that shall hear it, will beware of him.

33Who will set a guard before my mouth, and a sure seal upon my lips, that I fall not by them, and that my tongue destroy me not?