The comments concerning "holy books" do not exactly refer to the Bible. The Mosaic law concerning kosher food was given, not to all mankind, but only to Israel. Daniel and his friends kept kosher in Nebuchadnezzar's court by avoiding doubtful food and requesting a vegetarian diet.
It was Solomon's prayer, not the Lord's command, that prayer in certain circumstances be made facing the temple. Obviously this would not be possible after the temple's destruction.
In the New Testament, in Acts 10, the Lord tells Peter to eat even the non-kosher foods, for what the Lord has called clean, Peter is not to consider unclean.
Just trying to keep the record straight.