Malachi is the last book in the O.T. and took place about 400-years before The Gospel of (Matthews) in the N.T. The historical setting occurs near the end of Nehemiah after the Jew’s were freed from the Babylonia Captivity. Biblical history shows that when God’s people cast aside God’s ways it’s just a matter of time before corrects the mistake! Under Nehemiah God got the people back on their feet following the years of crisis. However, at the end of Nehemiah just 14-yrs after God’s help the people willfully forgot about God’s love for them.