Parallel
Jeremiah 27:42
Brenton's English Septuagint · Berean Standard Bible
[the people] is fierce, and will have no mercy: their voices shall sound as the sea, they shall ride upon horses, prepared for war, like fire, against thee, O daughter of Babylon.
50:42
They grasp the bow and spear (note: Or javelin); they are cruel and merciless. Their voice roars like the sea, and they ride upon horses, lined up like men in formation against you, O Daughter of Babylon.