Amos 3:13

Hear ye, and testify against, &c. The persons addressed might be the heathen nobles of Philistia and Egypt (Amos 3:9 b). But in view of the fact that they are not to see, but to hear, and that it is the divine sentence in Amos 3:14 which is to be virtually the subject of their testimony, it is probable that, as in Amos 3:9 a, ideal bearers of the divine message are intended by the prophet. Testify, i.e. declare solemnly, as Genesis 43:3; Deuteronomy 8:19; Psalms 50:7; Psalms 80:8; and frequently.

the Lord Jehovah, the God of hosts In Amos 4:13; Amos 5:14-15; Amos 6:8; Amos 6:14; Hosea 7:5, "Jehovah, the God of hosts"; in ch. Amos 5:27, "the God of hosts"; in Amos 5:16, "Jehovah, the God of hosts, the Lord"; in Amos 9:5, "The Lord, Jehovah of hosts"; in the prophets generally, simply "Jehovah of hosts." The finest and most expressive of Jehovah's titles, used pre-eminently by the prophets, and designating Him, in a word, as the Omnipotent. See the Additional Note, p. 231 f.