No man has ever seen God, so obviously it was one sent in Gods name to speak for God.
Is Jehovah a liar when He said He appeared unto Abraham, Isaac, & Jacob & had spoken to them? And even Moses?
May God help you to see the truth that the JW were not successful in changing enough of the scripture to fit their new ideology. Even your NWT was not changed to match what scriptures plainly proves that Jesus is the Jehovah that men had seen in the O.T. for Jesus to say Moses had written about Him.
John 5:39 Search the scriptures; for in them ye think ye have eternal life: and they are they which testify of me. 40 And ye will not come to me, that ye might have life.
46 For had ye believed Moses, ye would have believed me; for he wrote of me. 47 But if ye believe not his writings, how shall ye believe my words?
Go ahead and check the NWT and see that Jesus's words matched the KJV to prove that they did not change everything to fit their ideology.
To be disciples of Jesus Christ is to testify of the son in seeking the glory of the Son as led by the Holy spirit to do because that is what the Holy Spirit is to do also.
john 15:26 But when the Comforter is come, whom I will send unto you from the Father,
even the Spirit of truth, which proceedeth from the Father, he shall testify of me: 27 And ye also shall bear witness, because ye have been with me from the beginning.
John 16:13 Howbeit when he, the Spirit of truth, is come, he will guide you into all truth: for he shall not speak of himself; but whatsoever he shall hear, that shall he speak: and he will shew you things to come.
14 He shall glorify me: for he shall receive of mine, and shall shew it unto you. 15 All things that the Father hath are mine: therefore said I, that he shall take of mine, and shall shew it unto you.
Believe it or not, most Christian churches today do not see the offense by worshipping the Holy Spirit with the Father & the Son because the Holy Spirit in us would not lead us to do that, but that is what that ecumenical Nicene creed of 381 A.D. did in leading many astray. although there is a triune God but they apply the Trinity doctrine wrong as if they can approach God the father in worship by honoring the Holy Spirit or the blessed Trinity ignoring what Jesus said was the only way to honor the Father by was by honoring the Son because the moment they stop honoring the Son, they are no longer honoring the Father per John 5:22-23.