People cherry pick what they want to believe out of any religious book they want to believe in.In the many Christian religions in the world today a few have a different number of books that they consider as the word of God.
And their are many many more books of Scripture that didn`t quite make it as a part of the Bible canon and not rejected by God ,but rejected by humans who didn`t believe they should be considered as part of Gods inspired word .
God didn`t have a say in it .
Jehovah`s Witnesses adopted the same Bible books as the Protestants why is that ?Because they are a protestant religion against the Roman Catholic Church. Just look at any of their publications throughout their short history of about 140 years ,contrast that with the Catholic religion of over 2000 years.
Catholic religion, by the way had a big if not a great say or even the ultimate say, as to what Bible books were inspired by God or not and is really not disputed by anyone today including the Jehovah`s Witnesses .