God says you don't exist, and even if you did, lol…
Remember Og of Bashan?
Israelites take back their land. Whether from the Ottoman empire, or the apoState of Israel.
River Euphrates was a general approximation given in that verse. In other words, "towards the Euphrates." However, God later clarified the exact borders in Numbers 34. Cheers mate.
It's good that Numbers 34 was specific.