'Rite' in the Bible

You shall observe this event [concerning Passover] as an ordinance for you and for your children forever.

When you enter the land which the Lord will give you, as He has promised, you shall observe this rite.

And when your children say to you, ‘What does this rite mean to you?’

It shall be when the Lord brings you to the land of the Canaanite, the Hittite, the Amorite, the Hivite and the Jebusite, which He swore to your fathers to give you, a land flowing with milk and honey, that you shall observe this rite in this month.

“Once a year Aaron is to perform the purification rite on the horns of the altar. Throughout your generations he is to perform the purification rite for it once a year, with the blood of the sin offering for atonement. The altar is especially holy to the Lord.”

Then he presented the people's offering. He took the sin offering male goat which was for the people, slaughtered it, and performed a decontamination rite with it like the first one.

And if a stranger shall sojourn among you, and would hold the passover to Jehovah, according to the rite of the passover, and according to the ordinance thereof, so shall he do. Ye shall have one rite, both for the stranger and for him that is born in the land.

So it was their uncircumcised sons whom He raised up in their place, whom Joshua circumcised, because circumcision had not been performed on the way.

In each and every province and in each and every city, wherever the king’s command and his decree arrived, the Jews celebrated with gladness and joy, a feast and a holiday. And many among the peoples of the land became Jews, for the fear of the Jews [and their God] had fallen on them.

Therefore say to them, ‘Thus says the Lord God, “You eat meat with the blood in it and raise your eyes to your idols and shed blood. Should you take possession of the land?

Consider therefore. Moses gave you the rite of circumcision (not that it began with Moses, but with your earlier forefathers)