Genesis 21:24

And Abraham said, I will swear.

Genesis 14:13

And one came that had escaped and told Abram the Hebrew, who dwelt among the terebinth trees of Mamre the Amorite, brother of Eshcol and brother of Aner; and these were confederate with Abram.

Romans 12:18

If it can be done, as much as is possible on your part, live in peace with all men.

Hebrews 6:16

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

Treasury of Scripture Knowledge

Summary

And Abraham said, I will swear.

Bible References

General references

Genesis 14:13
And one came that had escaped and told Abram the Hebrew, who dwelt among the terebinth trees of Mamre the Amorite, brother of Eshcol and brother of Aner; and these were confederate with Abram.
Romans 12:18
If it can be done, as much as is possible on your part, live in peace with all men.
Hebrews 6:16
For men verily swear by the greater, and an oath for confirmation is to them an end of all controversy.