Matthew 14:7-9

Wherefore he promised, with an oath, to give her whatever she would ask.

Acts 23:14

And they went to the chief priests and elders, and said: We have surely bound ourselves under a curse, that we will taste nothing till we have killed Paul.

Treasury of Scripture Knowledge

Summary

And it came to pass, when he saw her, that he rent his clothes, and said, Alas, my daughter! thou hast brought me very low, and thou art one of them that trouble me: for I have opened my mouth unto the LORD, and I cannot go back.

Bible References

I cannot

Matthew 14:7
Wherefore he promised, with an oath, to give her whatever she would ask.
Acts 23:14
And they went to the chief priests and elders, and said: We have surely bound ourselves under a curse, that we will taste nothing till we have killed Paul.