Strong H7650 שָׁבַע shâba‛ · to swear

2 Kings

1. 2 Kings 11:4
   And the seventh year Jehoiada sent and fetched the rulers over hundreds, with the captains and the guard, and brought them to him into the house of the Lord, and made a covenant with them, and took an oath of them in the house of the Lord, and shewed them the king’s son.
2. 2 Kings 25:24
   And Gedaliah sware to them, and to their men, and said unto them, Fear not to be the servants of the Chaldees: dwell in the land, and serve the king of Babylon; and it shall be well with you.