'Sworn' in the Bible

How can I pardon thee? thy children have forsaken me, and sworn by them that are no gods: when I had fed them to the full, they committed adultery, and assembled themselves in troops at the harlots houses.

Therefore hear ye the word of Jehovah, all Judah that dwell in the land of Egypt: Behold, I have sworn by my great name, saith Jehovah, that my name shall no more be named in the mouth of any man of Judah in all the land of Egypt, saying, As the Lord Jehovah liveth.

For I have sworn by myself, saith Jehovah, that Bozrah shall become an astonishment, a reproach, a waste, and a curse; and all the cities thereof shall be perpetual wastes.

Jehovah of hosts hath sworn by himself,'saying , Surely I will fill thee with men, as with the canker-worm; and they shall lift up a shout against thee.