1. The holiness of God. (v. 1-2)
Leviticus 10:1-3
John 14:6
John 10:1

2. The need for a better sacrifice.
Proverbs 16:33
Hebrews 9:21-22
Leviticus 17:11
Hebrews 10:4
Romans 3:23-26

3. The need for a better priest.
Hebrews 9:24
Hebrews 4:14