Maybe Jehovah`s Witnesses need to get rid of the Christian Greek Scriptures / New Testament as those books do not support JW Theology/beliefs .
New Testament ,NT will be used for brevity .
Nowhere in the NT are Christians instructed encouraged or admonished to do anything in the name of Jehovah.
Their is not one scripture in the NT that states that.
However their is an avalanche of Scriptures in the NT that instruct ,encourage ,admonish Christians to ,witness to ,for and about Jesus Christ ,not once is Jehovah mentioned.
Furthermore the name Jehovah /Tetragrammaton does not appear in the new Testament at all.