'Oath' in the Bible

She replied to him, "My master, you swore an oath to your servant by the Lord your God, 'Solomon your son will be king after me and he will sit on my throne.'

The king swore an oath: "As certainly as the Lord lives (he who has rescued me from every danger),

I will keep today the oath I swore to you by the Lord God of Israel: 'Surely Solomon your son will be king after me; he will sit in my place on my throne.'"

King Solomon then swore an oath by the Lord, "May God judge me severely, if Adonijah does not pay for this request with his life!

the king summoned Shimei and said to him, "You will recall that I made you take an oath by the Lord, and I solemnly warned you, 'If you ever leave and go anywhere, know for sure that you will certainly die.' You said to me, 'The proposal is acceptable; I agree to it.'

Why then have you broken the oath you made before the Lord and disobeyed the order I gave you?"

As certainly as the Lord your God lives, my master has sent to every nation and kingdom in an effort to find you. When they say, 'He's not here,' he makes them swear an oath that they could not find you.