Sirach 27:18DRA

16Is the quarrels of the proud is the shedding of blood: and their cursing is a grievous hearing.

17He that discloseth the secret of a friend loseth his credit, and shall never find a friend to his mind.

18Love thy neighbour, and be joined to him with fidelity.

19But if thou discover his secrets, follow no more after him.

20For as a man that destroyeth his friend, so also is he that destroyeth the friendship of his neighbour.