'Sworn' in the Bible

therefore hath he called that place 'Beer-Sheba,' for there have both of them sworn.

and saith, 'By Myself I have sworn -- the affirmation of Jehovah -- that because thou hast done this thing, and hast not withheld thy son, thine only one --

Jehovah, God of the heavens, who hath taken me from the house of my father, and from the land of my birth, and who hath spoken to me, and who hath sworn to me, saying, To thy seed I give this land, He doth send His messenger before thee, and thou hast taken a wife for my son from thence;

sojourn in this land, and I am with thee, and bless thee, for to thee and to thy seed I give all these lands, and I have established the oath which I have sworn to Abraham thy father;

And Joseph saith unto his brethren, 'I am dying, and God doth certainly inspect you, and hath caused you to go up from this land, unto the land which He hath sworn to Abraham, to Isaac, and to Jacob.'