'Oaths' in the Bible

and Jehovah hath separated him for evil, out of all the tribes of Israel, according to all the oaths of the covenant which is written in this book of the law.

Of oaths his mouth is full, And deceits, and fraud: Under his tongue is perverseness and iniquity,

And it hath been to them as a false divination in their eyes, Who have sworn oaths to them, And he is causing iniquity to be remembered to be caught.

'Again, ye heard that it was said to the ancients: Thou shalt not swear falsely, but thou shalt pay to the Lord thine oaths;

and the king was grieved, but because of the oaths and of those reclining with him, he commanded it to be given;

And the king -- made very sorrowful -- because of the oaths and of those reclining (at meat) with him, would not put her away,