16 The word “his” does not appear in the Hebrew text, but is supplied in the translation for smoothness and clarity.
17 Heb “the heart of a wise man.”
18 The term עֵת (’et, “time”) connotes “a proper, suitable time for an event; the right moment” ( עֵת 6; 773 עֵת 2.b); e.g., “it was the time for rain” (Ezra 10:13); “a time of judgment for the nations” (Ezek 30:3); “there is an appropriate time for every occasion” (Eccl 3:1); “the time when mountain goats are born” (Job 39:1); “the rain in its season” (Deut 11:14; Jer 5:24); “the time for the harvest” (Hos 2:11; Ps 1:3); “food in its season” (Ps 104:27).

In other versions

Whoever keeps a command will know no evil thing, and the wise heart will know the proper time and the just way.

Whoever obeys his command will come to no harm,

and the wise heart will know the proper time and procedure.

The one who keeps a command will not experience anything harmful, and a wise heart knows the right time and procedure.

Those who obey him will not be punished. Those who are wise will find a time and a way to do what is right,

Whoever obeys his command will not suffer disaster.

The wise mind knows the proper time and the right procedure.

Whoso keepeth the commandment shall feel no evil thing: and a wise man’s heart discerneth both time and judgment.

Public Domain