Ben Sira 8:21

21 Before a stranger do no matter of counsel: for thou knowest not what he will bring forth.

Ben Sira 8:21 In-Context

19 Quarrel not with a passionate man, and go not into the desert with a bold man: for blood is as nothing in his sight, and where there is no help he will overthrow thee.

20 Advise not with fools, for they cannot love but such things as please them.

21 Before a stranger do no matter of counsel: for thou knowest not what he will bring forth.

22 Open not thy heart to every man: lest he repay thee with an evil turn, and speak reproachfully to thee.