'Ourselves' in the Bible

The elders of Gilead responded to Jephthah, "May the Lord serve as a witness that we're making this agreement between ourselves to do as we've said."

And when their fathers or their brothers come and make trouble, you are to say to them, Give them to us as an act of grace; for we did not take them as wives for ourselves in war; and if you yourselves had given them to us you would have been responsible for the broken oath.