Sirach 16:21

21 It is a tempest which no man can see: for the most part of his works are hid.

Sirach 16:21 In-Context

19 The mountains also and foundations of the earth be shaken with trembling, when the Lord looketh upon them.
20 No heart can think upon these things worthily: and who is able to conceive his ways?
21 It is a tempest which no man can see: for the most part of his works are hid.
22 Who can declare the works of his justice? or who can endure them? for his covenant is afar off, and the trial of all things is in the end.
23 He that wanteth understanding will think upon vain things: and a foolish man erring imagineth follies.

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