KJV - For their power is in their mouth, and in their tails: for their tails were like unto serpents, and had heads, and with them they do hurt.
ASV - For the power of the horses is in their mouth, and in their tails: for their tails are like unto serpents, and have heads; and with them they hurt.
BBE - For the power of the horses is in their mouths and in their tails: because their tails are like snakes, and have heads, and with them they give wounds.
WEB - For the power of the horses is in their mouths, and in their tails. For their tails are like serpents, and have heads, and with them they harm.
YLT - for their authorities are in their mouth, and in their tails, for their tails `are' like serpents, having heads, and with them they do injure;