I don't deny that the traditional church abandoned the feast days of the Lord over time. This was predicted in scripture. And as you just read it became heretical to keep the feast days after the council of Laeodecia.
If you're really interested in sabbath keeping throughout history there are plenty of resources on the web. Google "sabbath keeping throughout history" or variants.
The fact that Jesus Christ and biblical Christians should be enough for anyone.
i don’t deny you won’t find a group here and there at various times that kept the 7th day sabbath.
what i do deny is that the Christian Church ever did, as no one in the NT ever kept the sabbath after Pentecost and the Catholic Faith received from the Apostles did not include keeping the sabbath.
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