Genesis 14:22
But Abram replied to the king of Sodom, "I have raised my hand to the LORD God Most High, Creator of heaven and earth,

Exodus 6:8
And I will bring you into the land that I swore to give to Abraham, Isaac, and Jacob. I will give it to you as a possession. I am the LORD!'"

Numbers 14:28-30
So tell them: As surely as I live, declares the LORD, I will do to you exactly as I heard you say. . . .

Jeremiah 4:2
and if you can swear, 'As surely as the LORD lives, ' in truth, in justice, and in righteousness, then the nations will be blessed by Him, and in Him they will glory."

Hebrews 6:17, 18
So when God wanted to make the unchanging nature of His purpose very clear to the heirs of the promise, He guaranteed it with an oath. . . .

Revelation 10:5, 6
Then the angel I had seen standing on the sea and on the land lifted up his right hand to heaven. . . .