My friend, Paul McCain, and I were yacking about the readings in Treasury from Leviticus. There are a few points in the recent readings that I think are well worth noting.
First, verse 8 in both yesterday's (Lev. 20) and today's (Lev. 21): "The Lord who sanctifies you; keep the commandments!" I note the same train of thought in Philippians 2: Work out your own salvation with fear and trembling, for it is God who works in you, both to will and to work for His good pleasure. Sanctification comes from living in the presence of the Holy One, but that leads to the keeping of His commandments, and always rejoicing in the blood of atonement for our sin.
Second, the intense interest in physicality in the holiness codes teaches us the importance that God attaches to our bodies. This theme runs from start to finish in Scripture. It fits so well with asking God for daily bread before we even ask for forgiveness in the Our Father.
Third, the whole matter of what is suitable for the priests comes to great "aha" when you remember that this is what the New Covenant lifts you into: you now are members of God's royal priesthood, who have access to the holy place, and offer the incense of prayer and eat the holy bread that God provides. When we never forget that God has given US this inner access to His presence, much of Leviticus lights up!