'Took an Oath' in the Bible

And Joseph took an oath of the children of Israel, saying, God will certainly visit you; and ye shall carry up my bones hence.

As Jehovah thy God liveth, there is no nation or kingdom whither my lord has not sent to seek thee; and when they said, He is not here, he took an oath of the kingdom or nation that they found thee not.

And in the seventh year Jehoiada sent and fetched the captains of the hundreds, of the bodyguard and the couriers, and brought them to him into the house of Jehovah, and made a covenant with them, and took an oath of them in the house of Jehovah, and shewed them the king's son.

And they said, We will restore them, and will require nothing of them; so will we do, as thou hast said. And I called the priests, and took an oath of them, that they should do according to this promise.