'Slay' in the Bible

and there went forth another horse -- red, and to him who is sitting upon it, there was given to him to take the peace from the land, and that one another they may slay, and there was given to him a great sword.

And I saw: and behold, a pale horse, and he that sat upon it, his name was Death, and hades followed with him; and authority was given to him over the fourth of the earth to slay with sword, and with hunger, and with death, and by the beasts of the earth.

And the four angels were loosed, which were prepared for an hour, and a day, and a month, and a year, for to slay the third part of men.