Zecharyah 6:1-3

Orthodox Jewish Bible

6 And I looked again, and lifted up mine eyes, and, hinei, there came arbah merkavot (four chariots) and they were coming out from between two harim (mountains); and the harim were harim of nechoshet (bronze).

² In the merkavah harishonah were red-brown susim; and in the merkavah hashenit susim shechorim (black horses);

³ And in the merkavah hashlishit susim levanim (white horses); and in the merkavah harevi’it speckled, powerful susim.