Hi designs,
There is not the tension or competition about who saves in scripture that you are trying to create in the witness position, although the nwt confuses the process in their rendering of the passages in Acts.
The NWT confuse the name, agreed. However, to me the name who saves is paramount.
If you think it is "Jehovah" then you will will need to re-write all these verses and many more.
Acts 4:10-12 (New International Version)
10 then know this, you and all the people of Israel: It is by the name of Jesus Christ of Nazareth, whom you crucified but whom God raised from the dead, that this man stands before you healed. 11 He is
" 'the stone you builders rejected,
which has become the capstone.' 12 Salvation is found in no one else, for there is no other name under heaven given to men by which we must be saved."
2 Timothy 3:14-15 (New International Version)
14 But as for you, continue in what you have learned and have become convinced of, because you know those from whom you learned it, 15 and how from infancy you have known the holy Scriptures, which are able to make you wise for salvation through faith in Christ Jesus.
John 14:6 (New International Version)
6 Jesus answered, "I am the way and the truth and the life. No one comes to the Father except through me.
1 John 5:20 (New International Version)
20 We know also that the Son of God has come and has given us understanding, so that we may know him who is true. And we are in him who is true—even in his Son Jesus Christ. He is the true God and eternal life.
All the best,
Stephen