21:8. And a lion cried out: I am upon the watchtower of the Lord, standing continually by day: and I am upon my ward, standing whole nights.

And a lion cried out… That is, I Isaias seeing the approaching ruin of
Babylon, have cried out as a lion roaring.

21:9. Behold this man cometh, the rider upon the chariot with two horsemen, and he answered, and said: Babylon is fallen, she is fallen, and all the graven gods thereof are broken unto the ground.

21:10. O my thrashing, and the children of my floor, that which I have heard of the Lord of hosts, the God of Israel, I have declared unto you.

21:11. The burden of Duma calleth to me out of Seir: Watchman, what of the night? watchman, what of the night?

Duma… That is, Idumea, or Edom.

21:12. The watchman said: The morning cometh, also the night: if you seek, seek: return, come.

21:13. The burden in Arabia. In the forest at evening you shall sleep, in the paths of Dedanim.

21:14. Meeting the thirsty bring him water, you that inhabit the land of the south, meet with bread him that fleeth.

21:15. For they are fled from before the swords, from the sword that hung over them, from the bent bow, from the face of a grievous battle.