Holy is the Lord Our God. Holiness is a diffficult characteristic to grasp and appreciate. It is not just one perfect characteristic, but the whole of both purity and perfection. Frankly, it cannot be wholly achieved by any mortal without faith in the supernatural grace of the Father, Son, and Holy Ghost.
I have read Leviticus twice. The first time in futile detail. The second time in graceful depth. Some time ago, there were pictures that were quite popular to observe. When you looked at them closely at face value, they looked liked meaningless patterns...But if you stepped back and looked at the picture wholly, you could see an image appear. Sometimes, it took great effort to see the image and sometimes, it never came through- no matter how hard you tried... The Book of Leviticus is similar. There are a myriad of complex patterns of behavior and rituals outlined for rules, repentance, and sacrifice that even the most knowledgeable priest would have a difficult time following to remain holy before God in in the tabernacle. In fact, some priests did fail to follow the correct procedure despite their best intentions and lost their lives for it.
As Christians, we are obligated to be holy, for God says in LEVITICUS 19, “You shall be Holy, for I the Lord your God am Holy.” We must obey God, sacrifice for God, live by the ten commandments of God daily, and most importantly- as Christ taught- Love others as you love yourself. To truly love another as yourself, you really need to understand God's holiness. You need to be compassionate- not simply pity or "feel the pains" of others. You must act in love, joy, peace, patience, kindness, goodness, faithfulness, gentleness and self-control among others.
In the hard times as we live in now, Timothy warned us that many will appear as religious on the outside, but be unholy and without the power of God within. We must cleave more tightly than ever to God- lest we be deceived by the unholy ones...
Jesus said in MARK 12:33, "Love the Holy Father with all your heart, with all your mind, and with all your strength and to love your neighbor as yourself is more important than all burnt offerings and sacrifices.” The Holiness of Jesus guides us through the Labrynthe of Leviticus on His Amazing Grace. Thank God that He is so compassionate to send His One and Only Son as the Sacrifice that pays the debts of sin Wholly for all who seek Him. -Amen.