Hebrews 6:16

For men verily swear by the greater, and an oath for confirmation is to them an end of all controversy.

Exodus 22:11

then shall an oath of the LORD be between them both, that he has not put his hand unto his neighbour's goods, and the owner of it shall accept thereof, and he shall not make it good.

Genesis 14:22

And Abram said to the king of Sodom, I have lifted up my hand unto the LORD, the most high God, the possessor of the heavens and of the earth,

Genesis 21:23

Now therefore swear unto me here by God that thou wilt not deal falsely with me, nor with my son, nor with my son's son; but according to the mercy that I have done unto thee, thou shalt do unto me and to the land in which thou hast sojourned.

Genesis 21:30-31

And he said, For these seven ewe lambs shalt thou take of my hand that they may be a witness unto me that I have dug this well.

Genesis 31:53

The God of Abraham and the God of Nahor, the God of their fathers, judge between us. And Jacob swore by the fear of his father Isaac.

Joshua 9:15-20

And Joshua made peace with them and made a covenant with them, to let them live; also the princes of the congregation swore unto them.

2 Samuel 21:2

And the king called the Gibeonites and said unto them: (now the Gibeonites were not of the sons of Israel, but of the remnant of the Amorites; and the sons of Israel had sworn unto them, and Saul had sought to slay them in his zeal for the sons of Israel and Judah).

Ezekiel 17:16-20

As I live, said the Lord GOD, surely in the place where the king dwells that made him king, whose oath he despised and whose covenant he broke, even with him in the midst of Babylon, he shall die.

Matthew 23:20-22

Whosoever therefore shall swear by the altar, swears by it and by all things thereon.

Hebrews 6:13

For when God promised unto Abraham, because he could swear by no greater, he swore by himself,

Treasury of Scripture Knowledge

Summary

For men verily swear by the greater: and an oath for confirmation is to them an end of all strife.

Bible References

An oath

Genesis 21:30
And he said, For these seven ewe lambs shalt thou take of my hand that they may be a witness unto me that I have dug this well.
Genesis 31:53
The God of Abraham and the God of Nahor, the God of their fathers, judge between us. And Jacob swore by the fear of his father Isaac.
Exodus 22:11
then shall an oath of the LORD be between them both, that he has not put his hand unto his neighbour's goods, and the owner of it shall accept thereof, and he shall not make it good.
Joshua 9:15
And Joshua made peace with them and made a covenant with them, to let them live; also the princes of the congregation swore unto them.
2 Samuel 21:2
And the king called the Gibeonites and said unto them: (now the Gibeonites were not of the sons of Israel, but of the remnant of the Amorites; and the sons of Israel had sworn unto them, and Saul had sought to slay them in his zeal for the sons of Israel and Judah).
Ezekiel 17:16
As I live, said the Lord GOD, surely in the place where the king dwells that made him king, whose oath he despised and whose covenant he broke, even with him in the midst of Babylon, he shall die.

General references

Genesis 21:24
And Abraham said, I will swear.
Isaiah 54:9
For this is as the waters of Noah unto me: for as I have sworn that the waters of Noah should no more go over the earth; so I have sworn that I would not be wroth again with thee, nor reprehend thee.
Micah 7:20
Thou wilt perform the truth to Jacob and the mercy to Abraham, which thou hast sworn unto our fathers from the times of old.
Luke 1:73
of the oath which he made to our father Abraham,