Job 30:31

“My harp also is [turned] to mourning, etc.] Which he used, as David, either in religious worship, expressing praise to God thereby, or for his recreation in an innocent way; but now it was laid aside, and, instead of it, nothing was heard from him, or in his house, but the voice of mourning: and my organ into the voice of them that weep; another instrument of music, which had its name from the pleasantness of its sound, and was of early use, being first invented by Jubal, (<010421>Genesis 4:21); but not that we now so call, which is of late invention: those instruments which Job might have and use, both in a civil and in a religious way, were now, through afflictions, become useless to him,…”

“organ--rather, "pipe" (Job 21:12). "My joy is turned into the voice of weeping" (Lam 5:15). These instruments are properly appropriated to joy (Isa 30:29, Isa 30:32), which makes their use now in sorrow the sadder by contrast. Next: Job Chapter 31”

“My harp also is turned to mourning - What formerly gave cheerful sounds, now gives only notes of plaintiveness and lamentation. The harp was probably an instrument originally designed to give sounds of joy. For a description of it, see the notes at Isaiah 5:12. And my organ - The form of what is here called the organ, is not certainly known. The word עגב ‛ûgâb is doubtless from עגב ‛âgab, “to breathe, to blow”; and most probably the instrument hero intended was the pipe. For a description of it, see the notes at Isaiah 5:12. This instrument, also, was played, as would appear, on joyous occasions, but Job now says that it was turned to grief. All that had been joyous with him had fled. His…”

“Psa 137:1-4; Ecc 3:4; Isa 21:4, Isa 22:12, Isa 24:7-9; Lam 5:15; Dan 6:18 Next: Job Chapter 31”