"When everything had been arranged like this, the priests entered regularly into the outer room to carry on their ministry. But only the high priest entered the inner room, and that only once a year, and never without blood, which he offered for himself and for the sins the people had committed in ignorance. The Holy Spirit was showing by this that the way into the Most Holy Place had not yet been disclosed as long as the first tabernacle was still functioning. This is an illustration for the present time, indicating that the gifts and sacrifices being offered were not able to clear the conscience of the worshiper. They are only a matter of food and drink and various ceremonial washings—external regulations applying until the time of the new order." -Hebrews 9:6-10
Kosher eating, animal sacrifice, symbolic cleansing - all of these are no longer needed under Christ. Jesus kept his body "clean", not by what He ate but how He lived. Because His heart was so very pure, His offering to God brought universal freedom and atonement. We can live and move and breathe and grow by His grace, but let's do so as we work out our salvation with fear and trembling - that is, a holy reverence for God with constant verification searching by His Holy Spirit.