Malachi 4:5-6
4:5Elijah was a prophet who spoke God's message to the people. See 1 Kings 17:1. Here, God promises that another ‘Elijah’ will come before the day of the Lord. About 460 years after Malachi wrote his book, John the Baptist was born. People thought that he was like Elijah. He prepared the way for Jesus to come.
4:6 return together to me or return to each other as friends.