en_tn/2ki/07/06.md

the Aramean army hear a noise of chariots, and a noise of horses—the noise of another large army

The soldiers of the Aramean army heard noises that sounded like a large army approaching to battle them. This was not an actual army, but the Lord had made them hear these sounds.

they said to each other

"the Aramean soldiers said to each other"

the kings of the Hittites and Egyptians

Here the word "kings" represents the kings and their armies. AT: "the armies of the Hittites and the Egyptians" (See: rc://en/ta/man/translate/figs-synecdoche)

to come against us

"to fight us" or "to attack us"