לָכֵ֗ן הַמַּשְׂכִּ֛יל בָּעֵ֥ת הַהִ֖יא יִדֹּ֑ם כִּ֛י עֵ֥ת רָעָ֖ה הִֽיא׃
Therefore the prudent doth keep silence in such a time; For it is an evil time.
Rashi on Amos
the prudent—Whoever is wise shall keep silent when the evil comes, and he shall not criticize the Divine standard of justice, for they did all these.
Rashi on Amos
for it is a time of evil—[I.e.] a time destined [for them] to receive their evil.