The Remedy Vs The Label
In Jesus prayer (Jn. 17:6) he said I have manifested thy name unto the men which thou gayest me. . . . Did he mean he had magnified the proper designation Jehovah or other like name? He explains himself in v. 8: For I have given unto them the words which thou gayest me; and they have received them, and have known surely I that I came out from thee, and they have believed that thou didst send me. (Cf. Jn. 12:49-50) Jesus manifested Gods name when he taught the truths of God — not by giving mystical significance to some label.
When Peter and John were brought before the Jewish authorities and questioned concerning the healing of the lame man (Acts 3:), they were asked: By what power, or by what name have ye done this? (4:7-f.)
Were they asked, What label did you use, what proper name did you call out? It seems clear from the question that if a proper name was under consideration at all, it was only to identify the source of the power by which the miracle was performed. Peter clearly understood this as shown by his reply. He said, If we this day be examined of the good deed done to the impotent man, by what means he is made whole; be it known... that by the name of Jesus Christ... even by him doth this man stand here before you whole.
Note the emphasis I have given to show various expressions for the same thing. By what power, by what name, by what means, even by him. It was by him, the personal power or means of him, that the miracle was done. It was not by some magical use of a label or proper designation. The man was healed by Jesus Christ, the Son of God; not by what he was called.
And later, when Peter said, there is none other name under heaven given among men, whereby we must be saved, he is not talking about the terminology of the sign on a church building, but about the divine means by which man is saved from sin. We rightly speak of the followers of Christ as the church of Christ, but we find no magic formulae in the terms. We are just following the scriptural example of calling things what they are.