Julia's Loophole

In Matthew 24
"And this gospel of the kingdom will be preached in the whole world as a testimony to all nations, and then the end will come."

We were wondering if these means the great commission needs to be accomplished b/f "the end" comes, whatever part of the end "the end" is referring to.

-Julia brought up a fulfillment of preaching to all nations w/ the angel in Rev. 14:6
Then I saw another angel flying in midair, and he had the eternal gospel to proclaim to those who live on the earth—to every nation, tribe, language and people.

so, maybe that's what that's about, meaning maybe Jesus can even return before every "nation" possesses the gospel. But, our maybe not, because we wondering if this angel was after the return of jesus, meaning, too late.

-Here's mine: everyone, all flesh, finds out that Jesus=Yaweh when he kill a bunch of people. I'm guessing this is the tribulations and not the end o millenium fight.

Isa 49:26
And I will feed them that oppress thee with their own flesh; and they shall be drunken with their own blood, as with sweet wine: and all flesh shall know that I the LORD am thy Saviour and thy Redeemer, the mighty One of Jacob.