Sirach 39:31

31 They shall rejoice in his commandment, and they shall be ready upon earth, when need is; and when their time is come, they shall not transgress his word.

Sirach 39:31 In-Context

29 Fire, and hail, and famine, and death, all these were created for vengeance;
30 Teeth of wild beasts, and scorpions, serpents, and the sword punishing the wicked to destruction.
31 They shall rejoice in his commandment, and they shall be ready upon earth, when need is; and when their time is come, they shall not transgress his word.
32 Therefore from the beginning I was resolved, and thought upon these things, and have left them in writing.
33 All the works of the Lord are good: and he will give every needful thing in due season.

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