Colossians 2:20–23 (KJV 1900) — 20 Wherefore if ye be dead with Christ from the rudiments of the world, why, as though living in the world, are ye subject to ordinances, 21 (Touch not; taste not; handle not; 22 Which all are to perish with the using after the commandments and doctrines of men? 23 Which things have indeed a shew of wisdom in will worship, and humility, and neglecting of the body; not in any honour to the satisfying of the flesh.Loving God with all my heart, soul, mind body, means obeying Him in all things. Because there is no scripture suggesting that the 4th Commandment has been removed, then it is reasonable to assume it hasn't been. I agree concerning the sanctuary system and its associated Sabbaths, sacrifices, services etc. The dietary laws however from my point of view weren't a part of the sanctuary system. They were separate again, and were God's revelation to the world, through His servants Israel, concerning good health and healing. It wasn't just diet. It was also sanitation, and hygiene, all sound scientific practical steps to keep a people healthy, alive, and at the their best physical stature that they may serve God and each other with the greatest strength possible. This honours God, but a human race that is dying of heart disease, blood disorders, weakened immune systems, and a general breakdown of organ function dishonors God. What does the NT say about honouring God?
Acts 10:11–16 (KJV 1900) — 11 And saw heaven opened, and a certain vessel descending unto him, as it had been a great sheet knit at the four corners, and let down to the earth: 12 Wherein were all manner of fourfooted beasts of the earth, and wild beasts, and creeping things, and fowls of the air. 13 And there came a voice to him, Rise, Peter; kill, and eat. 14 But Peter said, Not so, Lord; for I have never eaten any thing that is common or unclean. 15 And the voice spake unto him again the second time, What God hath cleansed, that call not thou common. 16 This was done thrice: and the vessel was received up again into heaven.