'Swore' 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!