'Rites' in the Bible

Now those to camp before the tabernacle toward the east, before the Tent of Meeting, toward the sunrise, were to be Moses, and Aaron and his sons, performing the duties of the sanctuary for whatever was required of the Israelites; and the layman (non-Levite) who approached [the sanctuary] was to be put to death.

In this way they became unclean in their practices;They played the prostitute in their own deeds [by giving their worship, which belongs to God alone, to other “gods”].

Then Paul took the [four] men, and the next day he purified himself along with them [by submitting to the ritual]. He went into the temple to give notice of [the time] when the days of purification [ending each vow] would be fulfilled and the usual offering could be presented on behalf of each one.

They found me in the temple presenting these offerings, after I had undergone [the rites of] purification, without any crowd or uproar. But there were some Jews from [the west coast province of] Asia [Minor],

For even the circumcised [Jews] themselves do not [really] keep the Law, but they want to have you circumcised so that they may boast in your flesh [that is, in the fact that they convinced you to be circumcised].