Two Compelling Reasons

 Clearly, then, the New World Translation as not the first Bible to contain the divine name in the New Testament. Like a judge who is called upon to decide a court case for which there are no living eyewitnesses, the New World Bible Translation Committee carefully weighed all the relevant evidence. Based on the facts, they decided to include Jehovah's name in their translation of the Christian Greek Scriptures. Note two compelling reasons why they did so. 

(1)The translators believed that since the Christian Greek Scriptures were an inspired addition to the sacred Hebrew Scriptures, the sudden disappearance of Jehovah's name from the text seemed inconsistent.

Next time: Two Compelling Reasons - Conclusion

From the jw.org publications