Sirach 19:9

9 For he heard and observed thee, and when time cometh he will hate thee.

Sirach 19:9 In-Context

7 Rehearse not unto another that which is told unto thee, and thou shalt fare never the worse.
8 Whether it be to friend or foe, talk not of other men's lives; and if thou canst without offence, reveal them not.
9 For he heard and observed thee, and when time cometh he will hate thee.
10 If thou hast heard a word, let it die with thee; and be bold, it will not burst thee.
11 A fool travaileth with a word, as a woman in labour of a child.

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