This document provides an overview and analysis of chapters 14-15 of the Book of Revelation. It summarizes key events and characters in the chapters, including the Lamb on Mount Zion with the 144,000 male Israelite virgins, three angels calling for last chance repentance, and two harvests before the seven bowls. The document also notes that Revelation 14 describes the last plagues, including the sea of glass and fire, those who conquered the beast, and a song of Moses and the Lamb declaring that God alone is holy. The seven angels then leave heaven to get bowls from a living creature and the heavenly sanctuary becomes inaccessible until the plagues are finished.