|Easton's Bible Dictionary|
(R.V. Micah 1:10), house of dust. The Authorized Version reads "in the house of Aphrah." This is probably the name of a town in the Shephelah, or "low country," between Joppa and Gaza.
Int. Standard Bible Encyclopedia
beth-le-af'-ra (beth le`aphrah; Septuagint ex oikou kata gelota, "house of dust"): The name of a place found only in Micah 1:10. From the connection in which it is used it was probably in the Philistine plain. There seems to be a play upon the name in the sentence, "at Beth le-`apharah have I rolled myself in the dust," `aphrah meaning "dust," and possibly another on Philistine in rolled, hith-palldshithi (see G. A. Smith, The Book of the Twelve Prophets, called Minor, in the place cited.).
Beth-le-aphrah (1 Occurrence)
Micah 1:10 Tell it not in Gath, weep not at all: at Beth-le-aphrah have I rolled myself in the dust. (ASV BBE DBY JPS NAS)