1 Samuel 28:10

28:10 But Saul swore an oath to her by the Lord, “As surely as the Lord lives, you will not incur guilt in this matter!”

1 Samuel 28:2

28:2 David replied to Achish, “That being the case, you will come to know what your servant can do!” Achish said to David, “Then I will make you my bodyguard from now on.”

1 Samuel 6:1

The Philistines Return the Ark

6:1 When the ark of the Lord had been in the land of the Philistines for seven months,

Matthew 5:34-37

5:34 But I say to you, do not take oaths at all – not by heaven, because it is the throne of God, 5:35 not by earth, because it is his footstool, and not by Jerusalem, because it is the city of the great King. 5:36 Do not take an oath by your head, because you are not able to make one hair white or black. 5:37 Let your word be ‘Yes, yes’ or ‘No, no.’ More than this is from the evil one.

Matthew 14:7

14:7 so much that he promised with an oath to give her whatever she asked.