Verses with the word mourners in the Old Testament (4 verses):

Job 29:25
I chose out their way, and sat chief, and dwelt as a king in the army, as one that comforteth the mourners.

Ecclesiastes 12:5
Also when they shall be afraid of that which is high, and fears shall be in the way, and the almond tree shall flourish, and the grasshopper shall be a burden, and desire shall fail: because man goeth to his long home, and the mourners go about the streets:

Isaiah 57:18
I have seen his ways, and will heal him: I will lead him also, and restore comforts unto him and to his mourners.

Hosea 9:4
They shall not offer wine offerings to the LORD, neither shall they be pleasing unto him: their sacrifices shall be unto them as the bread of mourners; all that eat thereof shall be polluted: for their bread for their soul shall not come into the house of the LORD.