@thor@mstdn.social @Mitsu while that's originally true, this didn't even apply throughout the entirety of the Old Testament. Exodus 12:48-49 makes this clear, saying:

"And when a stranger dwells with you and wants to keep the Passover to the Lord, let all his males be circumcised, and then let him come near and keep it; and he shall be as a native of the land. For no uncircumcised person shall eat it. One law shall be for the native-born and for the stranger who dwells among you."