Hebrews 9- Messiahs not returning to pay for sin. He is coming to gather who eagerly await Him. 2018

Heb 9:28
so Christ also, having been offered once to bear the sins of many, shall appear a second time for salvation without reference to sin, to those who eagerly await Him.

Messiah is not returning to pay for sin again. He is coming to gather those who eagerly await Him.
This chapter is a continuation of the theme of the previous chapter. Paul is building upon the theme of the New Covenant Yahweh has with Israel compared to the Old Covenant that was made on Mount Sinai.

The Old Covenant consisted of the people agreeing to obey Elohim and all His laws, statutes, ordinances, and commandments. If they would do so, then He would be their Elohim and they would be His people (Ex. 19:3-8). This first covenant failed due to the disobedience of the people.

The New Covenant (only with Israel) is Yahweh writing His Torah into our hearts and on our minds (Heb. 8:7-13). The content of the two covenants is the same. It still consists of Elohim's Torah. But the conditions of the covenant are what was changed. The New Covenant brings salvation and the enablement to follow Elohim's Law whereas the Old Covenant was man's attempt at righteousness on his own.

The Old Covenant dealt with an earthly priest from the tribe of Levi. The New Covenant brings salvation through Yeshua Messiah, our perfect High Priest after the order of Melchizedek. Since the New Covenant requires a perfect High Priest, the law concerning the priest being from the tribe of Levi had to be set aside.

This sets the scene for chapter 9...