Acts 21:23
Therefore do what we advise you. There are four men with us who have taken a vow.

Acts 21:26
So the next day Paul took the men and purified himself along with them. Then he entered the temple to give notice of the date their purification would be complete and the offering would be made for each of them.

Acts 21:27
When the seven days were almost over, some Jews from the province of Asia saw Paul at the temple. They stirred up the whole crowd and seized him,

Numbers 6:12
He must rededicate his time of separation to the LORD and bring a year-old male lamb as a guilt offering. But the preceding days shall not be counted, because his separation was defiled.