How I picture this is not that different from how you picture this. Under a feudal system, a local landowner would be lord over his property and the people therein. He would swear fealty to a more powerful lord, who ruled larger sections, and so on up to the king or queen or emperor.
So, I swore fealty to Jesus and am his liegeman, he is my liege-lord. He swore fealty to God Almighty. So, they command my loyalty. (No, no church-group on earth gets in between us, that's direct from me to Jesus. I may work with a group, but my fealty is not to them. And if they try to convince me otherwise, it's time to leave the group.)
Communication may come to me from God, from Jesus, or some angel/intermediary. It's all the same, as far as I'm concerned. God and Jesus are one in purpose, and work together, having worked together for at least 2,000 years. If they are one in other ways, that only reinforces what needs no reinforcement to me. There would be issues if they ever disagreed on anything, but I don't see that happening. If they ever did, I expect they've settled any disagreements hundreds of years ago if not thousands.
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Psalm 110:1 The Lord said unto my Lord, Sit thou at my right hand, until I make thine enemies thy footstool.
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That "LORD" at the beginning of the verse is "YHWH", the name of God Almighty, Yahweh, and is not to be given to anyone else. David wrote that YHWH said to David's lord, "Sit at my right hand, until I make your enemies your footstool."
Did that refer to YHWH and Jesus?
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Acts 2: 34-36
34 For David is not ascended into the heavens: but he saith himself, The Lord said unto my Lord, Sit thou on my right hand,
35 Until I make thy foes thy footstool.
36 Therefore let all the house of Israel know assuredly, that God hath made the same Jesus, whom ye have crucified, both Lord and Christ.
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So, YHWH said that to Jesus.
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I Corinthians 15: 23-28
23 But every man in his own order: Christ the firstfruits; afterward they that are Christ's at his coming.
24 Then cometh the end, when he shall have delivered up the kingdom to God, even the Father; when he shall have put down all rule and all authority and power.
25 For he must reign, till he hath put all enemies under his feet.
26 The last enemy that shall be destroyed is death.
27 For he hath put all things under his feet. But when he saith all things are put under him, it is manifest that he is excepted, which did put all things under him.
28 And when all things shall be subdued unto him, then shall the Son also himself be subject unto him that put all things under him, that God may be all in all.
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I prefer the NASB version of the same verses, they're a little clearer, IMHO.
23 But each in his own order: Christ the first fruits, after that those who are Christ’s at His coming, 24 then comes the end, when He hands over the kingdom to our God and Father, when He has abolished all rule and all authority and power. 25 For He must reign until He has put all His enemies under His feet. 26 The last enemy that will be abolished is death. 27 For He has put all things in subjection under His feet. But when He says, “All things are put in subjection,” it is clear that [j]this excludes the Father who put all things in subjection to Him. 28 When all things are subjected to Him, then the Son Himself will also be subjected to the One who subjected all things to Him, so that God may be all in all.
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The interlinear renders "God, even the Father" as "He who is God and Father", which is clear enough. In what is to come, all will be made subject to Jesus......
...except God Almighty, Who subjected everything to Jesus- He won't be subject to Jesus. Once everything is subject to Jesus, then Jesus is subjected (as if he isn't now) to God Almighty, subjecting everything to God through Jesus, "that God may be all in all."
Will that be because that's the order, or because of the Trinity? It will work out exactly the same, either way.