Sirach 8:17

¹⁵Travel not by the way with a bold fellow, lest he become grievous unto thee: for he will do according to his own will, and thou shalt perish with him through his folly.

¹⁶Strive not with an angry man, and go not with him into a solitary place: for blood is as nothing in his sight, and where there is no help, he will overthrow thee.

— Sirach 8:17 —

¹⁸Do no secret thing before a stranger; for thou knowest not what he will bring forth.

¹⁹Open not thine heart to every man, lest he requite thee with a shrewd turn.