A time to rend, and a time to sew; a time to keep silence, and a time to speak;

Wesley's Notes

3:7 To rent - When men rend their garments, as they did in great and sudden griefs.

Jamieson-Fausset-Brown Bible Commentary

7. rend-garments, in mourning (Joe 2:13); figuratively, nations, as Israel from Judah, already foretold, in Solomon's time (1Ki 11:30, 31), to be "sewed" together hereafter (Eze 37:15, 22).

silence-(Am 5:13), in a national calamity, or that of a friend (Job 2:13); also not to murmur under God's visitation (Le 10:3; Ps 39:1, 2, 9).

Matthew Henry's Concise Commentary

3:1-10 To expect unchanging happiness in a changing world, must end in disappointment. To bring ourselves to our state in life, is our duty and wisdom in this world. God's whole plan for the government of the world will be found altogether wise, just, and good. Then let us seize the favourable opportunity for every good purpose and work. The time to die is fast approaching. Thus labour and sorrow fill the world. This is given us, that we may always have something to do; none were sent into the world to be idle.