‘Now this is the law of the Nazirite when the days of his consecration are fulfilled: he shall bring his offering to the entrance of the tent of meeting.
and shall live his days of consecration as a Nazirite for the Lord, and shall bring a male lamb a year old as a guilt offering; but the preceding days will not count, because his consecration was defiled.
Then Paul took along the men, and the next day, after purifying himself together with them, he went into the temple giving notice of the completion of the days of purification, until the sacrifice was offered for each one of them.