I entered Romans 9:1-6 in the Passage Guide on both Windows and Mac. Among the multitude of commentaries I found "Preacher Commentary Volume 2, Exodus". Clicking the link opens Volume 2, Chapter 6. This chapter contains a reference to Romans 9:14–18. This commentary contains numerous references to Romans 9, but it seems odd to find it listed among the Romans commentaries.
Is this expected behavior? Does it appear with any other commentary series?
Jack