NET

23 Now the advisers of the king of Syria said to him: “Their God is a god of the mountains. That’s why they overpowered us. But if we fight them in the plains, we will certainly overpower them.

Darby

23 And the servants of the king of Syria said to him, Their gods are gods of the mountains; therefore they were stronger than we; but if we fight against them on the plateau, shall we not be stronger than they?

KJV

23 And the servants of the king of Syria said unto him, Their gods [are] gods of the hills; therefore they were stronger than we; but let us fight against them in the plain, and surely we shall be stronger than they.