'Oath' in the Bible

Then he will say with an oath, I will not be a helper, for in my house there is no bread or clothing: I will not let you make me a ruler of the people.

I heard the Lord of Hosts say:Indeed, many houses will become desolate,grand and lovely ones without inhabitants.

The Lord has taken an oath, saying, My design will certainly come about, and my purpose will be effected:

On that day, there will be five cities in the land of Egypt that speak the {language} of Canaan and swear an oath to Yahweh of hosts. One will be called "City of the Sun."

And the Lord will give the knowledge of himself to Egypt, and the Egyptians will give honour to the Lord in that day; they will give him worship with offerings and meal offerings, and will take an oath to the Lord and give effect to it.

I solemnly make this oath -- what I say is true and reliable: 'Surely every knee will bow to me, every tongue will solemnly affirm;

For this is like the days of Noah to me: for as I took an oath that the waters of Noah would never again go over the earth, so have I taken an oath that I will not again be angry with you, or say bitter words to you.

The Lord swears an oath by his right hand, by his strong arm: "I will never again give your grain to your enemies as food, and foreigners will not drink your wine, which you worked hard to produce.

And ye have left your name For an oath for My chosen ones, And the Lord Jehovah hath put thee to death, And to His servants He giveth another name.

Then whoever takes an oath by the God of faithfulness, and whoever takes an oath in the land, will swear by the God of faithfulness, because the former troubles are forgotten and are hidden from my eyes.