Oh, and I forgot to mention...
The Mosaic law was given by the God of Abraham, Issac and Jacob. To bad God is the same yesterday, today and forever huh?
Please show me where God presented anything resembling the mosaic law to Abraham........waiting.......didn't think so. Abraham was the leader of his family, moses was laying down the laws for an entire nation. Abraham didn't practice passover, or the feasts, or have a temple. So while God is the same, His revelation and COVENANTS are progressive, as seen through the eyes of history of scripture.