'Oath' in the Bible

Come now, go to King David and say to him, Did you not, O my lord, take an oath to me, your servant, saying, Truly Solomon your son will be king after me, seated on the seat of my kingdom? why then is Adonijah acting as king?

And she said to him, My lord, you took an oath by the Lord your God and gave your word to your servant, saying, Truly, Solomon your son will be king after me, seated on the seat of my kingdom.

And the king took an oath, and said, By the living Lord, who has been my saviour from all my troubles,

As I took an oath to you by the Lord, the God of Israel, saying, Certainly Solomon your son will become king after me, seated on my seat in my place; so will I do this day.

And they gave Solomon word of it, saying, See, Adonijah goes in such fear of King Solomon, that he has put his hands on the horns of the altar, saying, Let King Solomon first give me his oath that he will not put his servant to death with the sword.

Now you have with you Shimei, the son of Gera the Benjamite of Bahurim, who put a bitter curse on me on the day when I went to Mahanaim; but he came down to see me at Jordan, and I gave him my oath by the Lord, saying, I will not put you to death by the sword.

Then King Solomon took an oath by the Lord, saying, May God's punishment be on me if Adonijah does not give payment for these words with his life.

Then the king sent for Shimei, and said to him, Did I not make you take an oath by the Lord, protesting to you and saying, Be certain that on the day when you go out from here, wherever you go, death will overtake you? and you said to me, Very well!

Why then have you not kept the oath of the Lord and the order which I gave you?

If a man does wrong to his neighbour, and has to take an oath, and comes before your altar to take his oath in this house:

Praise be to the Lord who has given rest to his people Israel, as he gave them his word to do; every word of all his oath, which he gave by the hand of Moses his servant, has come true.

By the life of the Lord your God, there is not a nation or kingdom where my lord has not sent in search of you; and when they said, He is not here; he made them take an oath that they had not seen you.

Then the king said to him, Have I not, again and again, put you on your oath to say nothing to me but what is true in the name of the Lord?