Gevurot 23:12-14 Orthodox Jewish Bible (OJB)
12 In the boker, the Judeans joined in a kesher and bound themselves with a shevu’ah that none of them would eat or drink until they had carried out their plot of retzichah b’seter of Rav Sha’ul.
13 Now there were more than arba’im anashim (forty men) who joined in this kesher.
14 After they approached the Rashei HaKohanim (Chief Priests) and the Zekenim (Elders), they said, "We have bound ourselves with a shevu’ah (oath) to eat nothing until we have killed Rav Sha’ul.
Acts 23:12-14 New International Version (NIV)
The Plot to Kill Paul
12 The next morning some Jews formed a conspiracy and bound themselves with an oath not to eat or drink until they had killed Paul. 13 More than forty men were involved in this plot. 14 They went to the chief priests and the elders and said, “We have taken a solemn oath not to eat anything until we have killed Paul.