'Sweareth' in the Bible

And the servant putteth his hand under the thigh of Abraham his lord, and sweareth to him concerning this matter.

and Jacob saith, 'Swear to me to-day:' and he sweareth to him, and selleth his birthright to Jacob;

the God of Abraham and the God of Nahor, doth judge between us -- the God of their father,' and Jacob sweareth by the Fear of his father Isaac.

and he saith, 'Swear to me;' and he sweareth to him, and Israel boweth himself on the head of the bed.