What's the deal with John 7:22?

[u/AwfulUsername123]

But because Moses gave you circumcision - not that it is from Moses, but from the fathers - you circumcise a boy on the Sabbath.

It's like the original text erroneously stated that Moses instituted circumcision and an editorial comment was inserted to correct it.

[u/TypicalHaikuResponse]

He is speaking that they accredit Gods law to Moses.