Sirach 8:13

13 Be not surety above thy power: for if thou be surety, take care to pay it.

Sirach 8:13 In-Context

11 Rise not up at the presence of an injurious person, lest he lie in wait to entrap thee in thy words
12 Lend not unto him that is mightier than thyself; for if thou lendest him, count it but lost.
13 Be not surety above thy power: for if thou be surety, take care to pay it.
14 Go not to law with a judge; for they will judge for him according to his honour.
15 Travel not by the way with a bold fellow, lest he become grievous unto thee: for he will do according to his own will, and thou shalt perish with him through his folly.

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