'Took an Oath' in the Bible

And Joseph took an oath of the sons of Israel, saying, God will surely visit you, and you shall carry up my bones from here.

As Jehovah your God lives, there is no nation nor kingdom where my lord has not sent to seek you. And when they said, He is not there, he took an oath of the kingdom and nation that they did not find you.

And in the seventh year Jehoiada sent and brought the rulers over hundreds, with the commanders and the guards, and brought them to him into the house of Jehovah. And he made a covenant with them and took an oath from them in the house of Jehovah, and revealed to them the king's son.

And they said, We will restore, and will ask nothing from them. So we will do as you say. Then I called the priests and took an oath from them that they should do according to this promise.