The Lord hath sworn. In answer to the representations of the "remembrancers," God solemnly binds himself by an oath to come to the relief of the people, to restore them to their own land, and to give them the enjoyment of its fruits in peace.
By his right hand. God commonly swears "by himself" (Genesis 22:16; Isaiah 45:23; Jeremiah 49:13; Jeremiah 51:14; Amos 6:5), or "by his holiness" (Psalms 89:35; Amos 4:2). Once he swears "by his great Name" (Jeremiah 44:26), and once "by the excellency of Jacob" (Amos 8:7).
There is no other place in Scripture where he swears "by his right hand and arm"—emblems of his power to act. Thy corn … thy wine; i.e. the fruits of thy land. Hitherto, even when Israel was in possession of Palestine, its fruits were constantly destroyed, or carried off, by the raids of hostile neighbours.
Henceforth this plundering should cease.