1. In 4:1-2 everyone falls to the ground and asks for the atoning blood to be applied to them. This is clear Day of Atonement behavior.
2. 4:11-12 is more temple imagery. Glory is what fills the temple. Tasting "of" the "love" of God is eating the fruit of the tree, the peace offering. I like the promise that you can grow in your knowledge of the glory.
3. 4:13 and of course, you will leave "peaceably", "peaceable" being "shalem", also meaning completed, reminding us of Leviticus 7:11 and Matthew 5:48.
4. 4:21 reminds us of the Sermon on the Mount, the triple petition before entering into the strait gate.