This document contains notes from a sermon series on the book of Nehemiah. It discusses chapters 9-13 which focus on national mourning and confession of sins, as well as Nehemiah's covenantal faithfulness in rebuilding the walls of Jerusalem despite enemies trying to infiltrate from within through unholy alliances, stopping the collection of tithes, desecrating the Sabbath, and intermarrying with pagans. The notes encourage cultivating faithfulness to God.