This document provides a summary of Malachi chapters 3 and 4 from the Bible. It discusses the coming messenger who will prepare the way for God and purify God's people. It describes how God requires his people to bring full tithes and offerings. The people complain about serving God, but God says he will protect those who fear him. Chapter 4 predicts the coming day of the Lord that will burn like an oven for the wicked. It says Elijah will come first to turn people's hearts back to God. The document also provides background information on pastor John Piper and the title and scripture reference for one of his sermons on Malachi 4:1-3 about the rising sun of righteousness.