Numbers 30:2 - When a man vows a vow to Yahweh, or swears an oath to bind his soul with a bond, he shall not break his word. He shall do according to all that proceeds out of his mouth.
Genesis 14:22 - Abram said to the king of Sodom, "I have lifted up my hand to Yahweh, God Most High, possessor of heaven and earth,
Nehemiah 5:12 - Then they said, "We will restore them, and will require nothing of them; so will we do, even as you say." Then I called the priests, and took an oath of them, that they would do according to this promise.
Ezra 10:5 - Then Ezra arose, and made the chiefs of the priests, the Levites, and all Israel, to swear that they would do according to this word. So they swore.
Genesis 26:31 - They rose up some time in the morning, and swore one to another. Isaac sent them away, and they departed from him in peace.