'Oath' in the Bible

So they said, "We will restore it and will not request [anything more]. So we will do as you say." Then I called the priests and made them take an oath to do this promise.

For many in Judah were bound by oath to him because he was the son-in-law of Shecaniah son of Arah. His son Jehohanan took as a wife the daughter of Meshullam son of Berekiah.

[are] helping their brothers, their nobles, and entering into a solemn oath to walk in the law of God which was given by the hand of Moses the servant of God, and to observe and do all of the commandments of Yahweh our Lord and his judgments and regulations.

So I quarreled with them and cursed them and beat some of their men and pulled out their hair. I made them take an oath by God: "Do not give your daughters to their sons or take their daughters for your sons or for yourselves.