One of the many strategies that the devil employs against the Lord and His truth is his attempt to corrupt the Word of God. It has always been the devil’s desire to corrupt God's truth. When he tempted Eve we see that strategy in operation:
 He first cast 'doubt' on the Word of God: Yea hath God said Ye shall not eat of every tree of the garden? Genesis 3:1;
 Next he 'contradicted' the Word of God: Ye shall not surely die, v4;
 He then 'denied' the Word of God: For God doth know that in the day ye eat thereof, then your eyes shall be opened, and ye shall be as gods, knowing good and evil, v5.
The devil has never left off that mode of operating against the truth of God. Sadly, when viewed from a purely human perspective it has to be acknowledged that his strategy seems quite successful. A corrupt Bible can do a great deal of harm and there are many of them about today!