Give presents to Moresheth-gath - Calmet says that Moresa or Morashti, and Achzib, were cities not far from Gath. It is possible that when Ahaz found himself pressed by Pekah, king of Israel, he might have sent to these places for succor, that by their assistance he might frustrate the hopes of the king of Israel; and this may be the meaning of "The houses of Achzib shall be a lie to the kings of Israel." In these verses there are several instances of the paronomasia. See Micah 1:10, עפר aphar, dust, and עפרה aphrah, the name of the city. Micah 1:11. צאנן tsaanan, the city, and יצאה yatsah, to go out. Micah 1:13, לכיש lachish, the city, and רכש rechesh, the swift beast. Micah 1:14, אכזיב achzib, the city, and אכזב achzab, a lie. Such paronomasias were reputed ornaments by the prophets. They occur in Isaiah with great effect. See Isaiah 5:7.
Therefore shalt thou give - (bridal) presents to Moresheth Gath Therefore! since Judah had so become a partaker of Israel‘s sins, she had broken the covenant, whereby God had given her the land of the pagan, and she should part with it to aliens. The bridal presents, literally the dismissals, were the dowry 1 Kings 9:16 with which the father sent away Judges 12:9 his daughter, to belong to another, her lord or husband, never more to return. Moresheth, (literally, inheritance,) the inheritance which God gave her, was to be parted with; she was to be laden with gifts to the enemy. Judah should part with her, and her own treasure also.
The houses of Achzib shall be a lie - Achzib, so called probably from a winter brook, achzab, was to become what its name imported, a resource which should fail just in the time of need, as the winter brooks in the drought of summer. “Wilt Thou be unto me as a failing brook, waters which are not sure?” Jeremiah 15:18. This Achzib, which is recounted between Keilah and Mareshah Joshua 15:44, was probably one of, the oldest towns of Palestine being mentioned in the history of the Patriarch Judah. After having survived about 1,000 years, it should, in time of need, fail. The kings of Israel are here the kings of Judah. When this prophecy was to be accomplished, the ten tribes would have ceased to have any political existence, the remnant in their own lanai would have no head to look to, except the line of David, whose good kings had a care for them. Micah then, having prophesied the utter destruction of Samaria, speaks in accordance with the state of things which he foresaw and foretold.