There cannot be another book which may serve as a church manual considering that Jesus declares that it is easier for our world to disappear than one character in the alphabet of the Jewish Scriptures. Therefore, both the Jewish Scriptures and its Appendix the New Testament serve as The Church Manual for the Christacolyte.
We pledge full allegiance to Moses and The prophets, and to the foundations laid by the Apostles in the New Testament to lead the Church of Jesus (God) to overcome the dragon, his beast, Babylon and come out to gather as one flock which follows only Jesus, our Shepherd.
Again, the only unchangeable reference manual to avoid the wide path to hell are the Jewish Scriptures and the commentaries of the Apostles which are recorded in the New Testament that serve as the foundations for the divine operation of the Church of Jesus (God).
Whether the commands of Jesus (YHWH) are taboos or not where we live, or appear ancient or obsolete, we may not go to the right or to the left, add to or subtract from the Bible as stated also in Deuteronomy 4:2; 5:32; 12:32; 28:14, and Joshua 1:7 in applying its principles in our lifestyle.
Keep in mind that Jesus says in Matthew 5:17-18 that His coming has no effect whatsoever in Moses and that none of the writers of the New Testament can never contradict Moses and that there is not even one contradiction in the Bible.
Meditate on Colossians 2:16 which is often twisted to allow, among other things, the consumption of what is forbidden in Moses and Isaiah 65:4 and 66:17 where we understand that those who twist Colossians 2:16 to eat pork are rebuked and will burn in Judgment Day. There is no way that Paul who never ate anything unclean can encourage us to eat pork in any of his writings when he is aware of wrath of Jesus (YHWH God) against those who eat pork, according to Isaiah 65:4 and 66:17.