6:1-2 Micah called his audience to hear what Yahweh had told him to say. Yahweh had a case (lawsuit, Heb. rib) to bring against His people. The Lord was summoning Israel to defend herself in a courtroom setting. He addressed the mountains, hills, and foundations of the earth as the jury in this case (cf. Deut. 32:1; Isa. 1:2). The Lord called this jury, which had observed Israel's history from its beginning, to hear His indictment against the nation. If these jurors could speak, they would witness to the truthfulness of the Lord's claims.
6:3 The Lord called the Israelites, His people, to testify how He had caused them to be so weary of Him that they ceased to obey Him. His rhetorical questions were unanswerable; He had not given them reason to become dissatisfied with Him (cf. 1 Sam. 17:29; 20:1; 26:18; 29:8; Isa. 5:4). His questions convey a sense of pathos; rather than simply criticizing them He asked how He had failed them. They had complained against Him often, but He had given them no occasion to do so.
6:4 Instead of wronging them He had done nothing but good for them. Instead of letting them down He had lifted them up. He had brought them from Egyptian bondage into the Promised Land of milk and honey. He had bought them out of the house of slavery, Egypt, which their Passover celebrated (cf. Exod. 12:3, 7, 12-13; Deut. 7:8; 9:26; 13:5; 15:15; 24:18). And He had given them capable leaders for their wilderness travels in Moses, Aaron, and Miriam, a trio of siblings whom the Israelites respected throughout their history. Moses, the prophet, had given them their law (cf. Deut. 18:15-22). Aaron served them as their first high priest, and Miriam was a prophetess who led them in praising God for His goodness (Exod. 15:20-21).
6:5 Yahweh charged the Israelites to remember that Balak, king of Moab, wanted God to curse His people, but Balaam revealed that God would never do that (Num. 22-24). God's intentions for His people had consistently been good. The events of their crossing the Jordan River and entering the Promised Land showed the same thing. Shittim was the Israelites' last camping place before they crossed the Jordan, and Gilgal was where they camped first after crossing (Josh. 3:1; 4:18-19). God had always done what was consistent with His covenant obligations to His people, never burdening them but always protecting, defending, and enabling them. He had lovingly led them from slavery in a hostile foreign land to settlement in their own comfortable country (cf. Josh. 24; 1 Sam. 12).