Sirach 29:17

17 And he that is of an unthankful mind will leave him that delivered him.

Sirach 29:17 In-Context

15 Forget not the friendship of thy surety, for he hath given his life for thee.

16 A sinner will overthrow the good estate of his surety:

17 And he that is of an unthankful mind will leave him that delivered him.

18 Suretiship hath undone many of good estate, and shaken them as a wave of the sea: mighty men hath it driven from their houses, so that they wandered among strange nations.

19 A wicked man transgressing the commandments of the Lord shall fall into suretiship: and he that undertaketh and followeth other men's business for gain shall fall into suits.