Psalm 63:11

Thou shalt fear the LORD thy God, and serve him, and shalt swear by his name.

The king shall joy in thy strength, O LORD; and in thy salvation how greatly shall he rejoice!

That he who blesseth himself in the earth shall bless himself in the God of truth; and he that sweareth in the earth shall swear by the God of truth; because the former troubles are forgotten, and because they are hid from mine eyes.

I have sworn by myself, the word is gone out of my mouth in righteousness, and shall not return, That unto me every knee shall bow, every tongue shall swear.

Now we know that what things soever the law saith, it saith to them who are under the law: that every mouth may be stopped, and all the world may become guilty before God.

For when God made promise to Abraham, because he could swear by no greater, he sware by himself,

In that day shall five cities in the land of Egypt speak the language of Canaan, and swear to the LORD of hosts; one shall be called, The city of destruction.

And now, behold, I know well that thou shalt surely be king, and that the kingdom of Israel shall be established in thine hand.

Let the lying lips be put to silence; which speak grievous things proudly and contemptuously against the righteous.

And he said unto him, Fear not: for the hand of Saul my father shall not find thee; and thou shalt be king over Israel, and I shall be next unto thee; and that also Saul my father knoweth.

So the poor hath hope, and iniquity stoppeth her mouth.

And them that worship the host of heaven upon the housetops; and them that worship and that swear by the LORD, and that swear by Malcham;

The righteous shall see it, and rejoice: and all iniquity shall stop her mouth.

Yet have I set my king upon my holy hill of Zion.