Then look at the difference between what the NIV says and what the Original KJV says, and tell me that the NIV's translation is accurate! The NIV is a rewrite of the original...and many things were not accurate in that rewrite.
You would be wise to shut up and quit flaunting your arrant ignorance. You're giving Christians an undeserved reputation for stupidity in front of the whole world. The prophet Malachi spoke and wrote in Hebrew, not in 15th century English.
Did you know that there are multiple languages in the world? And that God did not give us His Word in English, but in Greek, Hebrew,and Aramaic?