From Acts 1<quoted text>
I highly doubt that every time the bible uses the phrase "the ends of the earth" it means the same as our modern saying "I'll search to the ends of the earth to find .....". It seems almost laughable that you're trying to tell me that they mean the same thing. Never mind that just the majority of the world thought the world was flat.
Back to the "he who sits above the circle of the earth".
It "could" have meant that they think the world is flat and that you would fall off if you reached the end. Can you accept that possibility?
Are you still hinting that the bible says the is "round"?
But you will receive power when the Holy Spirit comes to you. Then you will be my witnesses to testify about me in Jerusalem, throughout Judea and Samaria, and to the ends of the earth."
This is Jesus talking to the disciples about preaching His word of love and redemption. I think it means the same thing today.