Yet will I bring an heir - (the heir, him whom God had appointed to be the heir, Sennacherib) unto thee, O inhabitant of Mareshah Mareshah, (as the original form of its name denotes, lay on the summit of a hill. “Its ruins only were still seen,” in the time of Eusebius and Jerome, “in the second mile from Eleutheropolis” (Onomasticon). : “Foundations still remain on the south-eastern part of the remarkable Tell, south of Beth-Jibrin.” Rehoboam fortified it also 2 Chronicles 11:8. Zerah the Aethiopian had come to (2 Chronicles 14:9 ff) it, probably to besiege it, when Asa met him, and God smote the AEthiopians before him, in the valley of Zephathah thereat. In the wars of the Maccabees, it was in the hands of the Edomites . Its capture and that of Adora are mentioned as the last act of the war, before the Edomites submitted to John Hyrcanus, and were incorporated in Israel. It was a powerful city , when the Parthians took it. As Micah writes the name, it looked nearer to the word “inheritance.” Mareshah (inheritance) shall yet have the heir of God’s appointment, the enemy. It shall not inherit the land, as promised to the faithful, but shall itself be inherited, its people dispossessed. While it, (and so also the soul now) held fast to God, they were the heritage of the Lord, by His gifts and grace; when, of their own free-will, those, once God’s heritage, become slaves of sin, they passed and still pass, against their will, into the possession of another master, the Assyrian or Satan.
He (that is, the heir, the enemy) shall come unto Adullam, the glory of Israel - . that is, he who shall dispossess Mareshah, shall come quite unto Adullam, where, as in a place of safety, the glory of Israel, all in which she gloried, should be laid up. Adullum was a very ancient city, being mentioned in the history of the patriarch Judah Genesis 38:1, Genesis 38:12, Genesis 38:20, a royal city Joshua 12:15. It too lay in the Shephelah Joshua 15:35; it was said to be 10 (Eusebius) or 12 (Jerome) miles East of Eleutheropolis; but for this, there seems to be scarcely place in the Shephelah. It was one of the 15 cities fortified by Rehoboam 2 Chronicles 11:7; one of the 16 towns, in which (with their dependent villages) Judah settled after the captivity Nehemiah 11:30. It contained the whole army of Judas Maccabaeus (1 Macc. 12:38).
Like Lachish, it had probably the double advantages of the neighborhood of the hills and of the plain, seated perhaps at the roots of the hills, since near it doubtless was the large cave of Adullam named from it. The line of caves, fit for human habitation, which extended from Eleutheropolis to Petra , began westward of it. : “The valley which runs up from Eleutheropolis Eastward, is full of large caves; some would hold thousands of men. They are very extensive, and some of them had evidently been inhabited.” : “The outer chamber of one cavern was 270 feet long by 126 wide; and behind this were recesses and galleries, probably leading to other chambers which we could not explore. The massive roof was supported by misshaped pieces of the native limestone left for that purpose, and at some places was domed quite through to the surface, admitting both light and air by the roof.” The name of Adullam suggested the memory of that cave, the refuge of the Patriarch David, the first of their line of kings, in extreme isolation and peril of his life. There, the refuge now of the remaining glory of Israel, its wealth, its trust, its boast - the foe should come. And so there only remained one common dirge for all.