'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.

Give ear to this, O family of Jacob, you who are named by the name of Israel, and have come out of the body of Judah; who take oaths by the name of the Lord, and make use of the name of the God of Israel, but not truly and not in good faith.