Acts 21:26
Then Paul having taken the men, in the following day having been purified with them, went into the temple, announcing the completion of the days of purification, till an offering be brought for each one of them.
Acts 24:18
In which they found me purified in the temple, not with the crowd, nor with uproar, and certain Jews from Asia.
Numbers 6:13-20
And this the law of him consecrated: in the day of filling up the days of his consecration, he shall bring himself to the door of the tent of appointment:
Acts 21:24
Having taken these, be purified with them, and expend upon them, that they might shave the head: and all might know that what they are taught about thee is nothing; but thou proceedest in regular order, also thyself watching the law.
1 Corinthians 9:20
And I was to the Jews as a Jew, that I might gain the Jews: to them under the law, as under the law, that I might gain them under the law;