'Swearing' in the Bible

In that day shall there be five cities in the land of Egypt speaking the language of Canaan, and swearing by Jehovah of hosts: one shall be called, The city of Heres.

Swearing, and lying, and killing, and stealing, and committing adultery, they break out; and blood toucheth blood.

They speak mere words, swearing falsely in making a covenant; therefore shall judgment spring up as hemlock in the furrows of the fields.

And by how much it was not without the swearing of an oath;

(for they are become priests without the swearing of an oath, but he with the swearing of an oath, by him who said, as to him, The Lord has sworn, and will not repent of it, Thou art priest for ever according to the order of Melchisedec;)

For the law constitutes men high priests, having infirmity; but the word of the swearing of the oath which is after the law, a Son perfected for ever.