Mark 6:23

"Ask me for anything you like and I will give it to you." And he made oath to her, "I will give you whatever you ask me for, up to half my kingdom."

Hebrews 6:16

For men make oath by something greater than themselves, and they accept an oath as settling finally any disagreement they may have.

Treasury of Scripture Knowledge

Summary

And Jacob said, Swear to me this day; and he sware unto him: and he sold his birthright unto Jacob.

Bible References

Swear

Mark 6:23
"Ask me for anything you like and I will give it to you." And he made oath to her, "I will give you whatever you ask me for, up to half my kingdom."
Hebrews 6:16
For men make oath by something greater than themselves, and they accept an oath as settling finally any disagreement they may have.