Are Romans 9, 10, and 11 a parenthetical section in the book of Romans?
Yes, Romans 9, 10, and 11 are parenthetical chapters positioned in the middle of Romans. Paul digresses to deal with the Jew: chapter 9 concerns Israel's past, chapter 10 Israel's present, and chapter 11 Israel's future, after which the flow returns to Romans 8 and chapter 12.
Les teaches that Romans 9, 10, and 11 are parenthetical chapters sitting right in the middle of the book of Romans. He explains that Paul suddenly digresses to deal with the Jew: chapter 9 deals with Israel's past, chapter 10 deals with God's dealing with Israel today in the present, and chapter 11 deals with Israel's future. Then the study goes right back to where it left off with Romans 8 and into chapter 12. Earlier, Les also notes that some seeming contradictions arise because in one instance God is dealing with Israel and in another with the church age, and there are vast differences in that.