'Oaths' in the Bible

In that day there will be five towns in the land of Egypt using the language of Canaan, and making oaths to the Lord of armies; and one of them will be named, The Town of the Sun.

"Listen to this, house of Jacob, you who are called by the name of Israel, and who have come forth from Judah's loins; you who swear oaths in the name of the LORD and invoke the God of Israel but not in truth, nor in good faith.