Ben Sira 6:7

7 When you gain friends, gain them through testing, and do not trust them hastily.

Ben Sira 6:7 In-Context

5 Pleasant speech multiplies friends, and a gracious tongue multiplies courtesies.

6 Let those who are friendly with you be many, but let your advisers be one in a thousand.

7 When you gain friends, gain them through testing, and do not trust them hastily.

8 For there are friends who are such when it suits them, but they will not stand by you in time of trouble.

9 And there are friends who change into enemies, and tell of the quarrel to your disgrace.