Sirach 27:16

16 Whoso discovereth secrets loseth his credit; and shall never find friend to his mind.

Sirach 27:16 In-Context

14 The talk of him that sweareth much maketh the hair stand upright; and their brawls make one stop his ears.
15 The strife of the proud is bloodshedding, and their revilings are grievous to the ear.
16 Whoso discovereth secrets loseth his credit; and shall never find friend to his mind.
17 Love thy friend, and be faithful unto him: but if thou betrayest his secrets, follow no more after him.
18 For as a man hath destroyed his enemy; so hast thou lost the love of thy neighbour.

The Brenton translation of the Septuagint is in the public domain.