I dont mean to be mean here, but this is a claim I often see from LDS which I consider dishonest. The LDS consider the Bible to be corrupt and inferior to the Book of Mormon. The position of the Church regarding the Bible is that it contains the word of God as far as it is translated correctly (
A of F 8). Joseph Smith taught that “
many important points touching the salvation of men, had been taken from the Bible, or lost before it was compiled.” He also said that the Bible was correct as
“it came from the pen of the original writers,” but that “ignorant translators, careless transcribers, or designing and corrupt priests have committed many errors.” (HC 1: 245; 6: 57.) The Church reveres and respects the Bible, but recognizes that
it is not a complete nor entirely accurate record, and affirms also that the Lord has given additional revelation through his prophets in the last days that sustains, supports, and verifies the biblical account of God’s dealings with mankind.
scriptures.lds.org/en/bd/b/55
This is another issue which Catholics dont accept