Eglayim is a place in Moab mentioned in Isaiah 15:8, in the oracle against Moab. Its name may mean "two ponds" or "twin watering places." The wailing for Moab's destruction would reach its borders.
The oracle against Moab (Isaiah 15–16) is one of the most emotionally moving judgment prophecies in Scripture. God's own heart is said to moan for Moab (Isaiah 16:11). The mention of Eglaim marks the geographic extent of mourning — from the southernmost to the northernmost points. This reminds us that God's judgment is not cold or impersonal; He grieves over the destruction of nations. His justice and His compassion are not contradictory.