It seems to me scripturally speaking, that Jehovah's Witnesses are emphasizing the wrong name.
It should be JESUS, not JEHOVAH
For example:
Who is the way, the truth and the life? (John 14:6)
To whose name would Christians witness? (Acts 1:8)
For whose name would Christians be hated? (Matt. 10:22)
For whose name would Christians be reproached? (1 Peter 4:14)
For whose name would Christians be persecuted and killed? (Luke 21:12,16,17)
For whose name would Christians make sacrifices? (Matt. 19:29)
By whose name alone were people be saved? (Acts 4:12)
By whose name were people healed? (Acts 3:6; Acts 4:10)
By whose name were demons expelled? (Luke 10:17; Acts 16:18)
By whose name would people receive Holy Spirit? (John 14:26)
By whose name would believers be named? (Isa. 62:2; Acts 11:26)
By whose name would people be reconciled to God? (Rom. 5:10; 2 Cor. 5:18)
By whose name would people be forgiven their sins? (Matt. 26:28; Acts 2:38; Eph. 1:7)
By whose name would people be resurrected (John 5:28)
In whose name would people pray to God? (John 15:16)
In whose name would people be baptized? (Acts 2:38, 8:16, 10:48, 19:5, 22:16)
In whose name were people to put faith? (John 2:23)
In whose name would people be judged? (John 5:27)
In whose name was Paul commissioned to preach? (Acts 9:14-16)
In whose name were Christians to gather together? (Matt. 18:20)
In whose name will every knee in heaven and on earth bend? (Philippians 2:10)
Jesus - not "Jehovah."