Sirach 43:10

10 At the commandment of the Holy One they will stand in their order, and never faint in their watches.

Sirach 43:10 In-Context

8 The month is called after her name, increasing wonderfully in her changing, being an instrument of the armies above, shining in the firmament of heaven;
9 The beauty of heaven, the glory of the stars, an ornament giving light in the highest places of the Lord.
10 At the commandment of the Holy One they will stand in their order, and never faint in their watches.
11 Look upon the rainbow, and praise him that made it; very beautiful it is in the brightness thereof.
12 It compasseth the heaven about with a glorious circle, and the hands of the most High have bended it.

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