Time to ask yourself these questions, Matthew...and honestly answer them:
“Do you have the ultimate authority to proclaim such things? Has all power been given unto you? We ought to be very careful indeed how we proceed in these matters. True believers will know when such heretic things are being taught, or do you know know that the sheep only know the Shepherd's voice?”
As for us, we will answer:
Yes, we do “have the ultimate authority to proclaim such things”:
“And Jesus came and spoke to them, saying, All authority is given to Me in Heaven and in earth. Therefore go and teach all nations, baptizing them...teaching them to observe all things, whatever I commanded you. And, behold, I am with you all the days until the end of the world. Amen” (Matthew 28:18-20 MKJV).
“Then Jesus said to them again, Peace to you. As My Father has sent Me, even so I send you” (John 20:21 MKJV).
“And I have given them the glory which You have given Me, that they may be one, even as We are one, I in them, and You in Me, that they may be made perfect in one; and that the world may know that You have sent Me and have loved them as You have loved Me” (John 17:22-23 MKJV).
“For let this mind be in you which was also in Christ Jesus...” (Philippians 2:5 MKJV).
“Has all power been given unto you?” Already answered above, but furthermore:
“I can do all things through Christ Who strengthens me” (Philippians 4:13 MKJV).
“And Jesus said to them, Because of your unbelief. For truly I say to you, If you have faith like a grain of mustard seed, you shall say to this mountain, Move from here to there. And it shall move. And nothing shall be impossible to you” (Matthew 17:20 MKJV).
“Jesus said to him, If you can believe, all things are possible to him who believes” (Mark 9:23 MKJV).
So yes, all power HAS been given to us. But you don't believe.
“We ought to be very careful indeed how we proceed in these matters.”
Indeed, we agree, we ought to be, and so should you. Are you? Do you know who you're talking to? Really?
“True believers will know when such heretic things are being taught, or do you know know that the sheep only know the Shepherd's voice?”
Very true, and that's why you know so little and don't hear His Voice directly or by our words:
“He who is of God hears God's Words. Therefore you do not hear them because you are not of God” (John 8:47 MKJV).
“We are of God. He who knows God hears us. The one who is not of God does not hear us. From this we know the spirit of truth and the spirit of error” (1 John 4:6 MKJV).
John 8:43-45 MKJV
(43) Why do you not know My speech? Because you cannot hear My Word.
(44) You are of the Devil as father, and the lusts of your father you will do. He was a murderer from the beginning, and did not abide in the truth because there is no truth in him. When he speaks a lie, he speaks of his own, for he is a liar and the father of it.
(45) And because I tell you the truth, you do not believe Me.
“May God truly bless you and keep you.”
Would or did Jesus say that to the Pharisees, the kind of people you say we are? Would Peter say that to Simon (Acts 8), or Paul to Elymas? Matthew, you are confounded and what's worse, unrepentant. You have nothing whatsoever to do with the Risen Lord and Savior Jesus Christ (Yeshua HaMashiach) or He with you.
Nevertheless, He has blessed and kept, is blessing and keeping and will bless and keep us, not because we have earned or deserved anything, but by His grace He has shown us mercy and commissioned us to speak the reality of things hidden from you. He's faithful to His servants and brothers.