The Book of Malachi is a book of the Hebrew Bible and the Christian Old Testament. It is a collection of prophecies and teachings attributed to the prophet Malachi, who lived in the 5th century BCE and served as a prophet to the people of Judah.
The Book of Malachi covers a wide range of subjects, including the judgment and redemption of God's people, the coming of the Messiah, and the restoration of the Kingdom of God. The book includes a number of prophecies and teachings about the importance of faithfulness and obedience to God, as well as visions of the future restoration and prosperity of the kingdom of God.
Key figures in the book of Malachi include Malachi, as well as the people of Judah, who are the recipients of the prophet's teachings and prophecies. The book also mentions various other individuals, such as the Babylonians, the Persians, and the Messiah, who are the subjects of the prophet's teachings and prophecies. The book also includes a number of references to God and his actions, as well as expressions of trust and reliance on him.