Ok, I will help you out.
When did Jesus receive 'all authority' as recorded in Matt 28:18?
If you say while on earth then the question is how then did he receive kingship and power in Daniel 7:13,14 after going to heaven and coming before Jehovah?
If you say while on earth then How did he go secure kingly power in heaven according to Luke 19 when he already had 'all authority before going to heaven?
If you answer after he went to heaven then how is it that Jesus said he had 'all authority' while still on earth? Your whole argument that 'all authority means all authority' has just gone up in smoke. You cannot use that argument to disprove JWs because obviously Jesus did not receive his kingship until after going to heaven. Therefore, the question is when did he receive kingship of God's Messianic Kingdom? Was it in 33CE immediately after going to heaven or was it 1914.
When did God make his enemies a stool for his feet? Was it when he sat down at the right hand of God in 33CE after going to heaven?
Paul gives the answer: Heb 10:12 But this [man] offered one sacrifice for sins perpetually and sat down at the right hand of God, 13 from then on awaiting until his enemies should be placed as a stool for his feet.
Now, opposers of JWs, you have a problem. Hebrews was written in 61CE almost 30 years after Jesus went to heaven. Jesus sat down at the right hand of God after going to heaven in 33CE but he still had to wait until his enemies should be placed as a stool for his feet. When did that happen? It was after 61CE for sure for Paul said he was still waiting.
Here is another problem you have. Revelation was written in 96CE. Some, like Auldsoul, say a little before that. But at any rate it was written long after Jesus went to heaven in 33CE. Revelation was given to John "to show his slaves the things that must shortly take place." So it was about future events that would take place long after 33CE.
Now go to Revelation 11:15-17:
15 And the seventh angel blew his trumpet. And loud voices occurred in heaven, saying: “The kingdom of the world did become the kingdom of our Lord and of his Christ, and he will rule as king forever and ever.”
16 And the twenty-four elders who were seated before God upon their thrones fell upon their faces and worshiped God, 17 saying: “We thank you, Jehovah God, the Almighty, the One who is and who was, because you have taken your great power and begun ruling as king.
Huh oh. Another big problem for opposers of JWs. How can this be? How is it that Jehovah begans ruling as king sometime after 33CE, even sometime after 61CE, even sometime after 96CE? What about that argument that Jehovah has always been king and could never begin to rule as king at some later point in time? What about that argument that Jesus was given 'all authority' therefore he could not have begun to rule at a later date after 33CE? Poof! It just went up in smoke.
The fact is that all of Revelation takes place in the Lord's day for John said, " 10 By inspiration I came to be in the Lord’s day, and I heard behind me a strong voice like that of a trumpet, 11 saying: “What you see write..."
So now it becomes fact that Jehovah began to rule thru Christ as His King in the Lord's day sometime after his going to heaven in 33CE. The question then becomes when is the Lord's day? And this question the Bible answers in Matthew 24 when Jesus answered, "What will be the sign of your parousia and the conclusion of the system of things?" Additionally the tree dream pinpoints the time when Jehovah would once again began ruling as King as respects his sovereignty towards the earth. All evidence points to 1914.