They rose up early. — The Moabite camp on the frontier mountains.
And the sun shone upon the water. — A parenthesis (now the sun had risen upon the water). The red sunrise tinged the water with the same colour.
On the other side. — Min-nèged, “opposite,” “over against them” (2 Kings 2:7; 2 Kings 2:15). The sun rose behind the Moabites.
Red. — ’Adôm. There may be an allusion to the red earth of the locality (Edom), which would further redden the water.