Ben Sira 6:7

7 If thou wouldst get a friend, try him before thou takest him, and do not credit him easily.

Ben Sira 6:7 In-Context

5 A sweet word multiplieth friends, and appeaseth enemies, and a gracious tongue in a good man aboundeth.

6 Be in peace with many, but let one of a thousand be thy counsellor.

7 If thou wouldst get a friend, try him before thou takest him, and do not credit him easily.

8 For there is a friend for his own occasion, and he will not abide in the day of thy trouble.

9 And there is a friend that turneth to enmity; and there is a friend that will disclose hatred and strife and reproaches.