But doesn’t God still owe
the Jews all the land of Israel?

Only C.I. Scofield and his deluded followers believe that are Bible promises to Abraham yet to be fulfilled for his natural descendants in the Middle East. The Bible plainly states in dozens of places that all the promises to the fathers were fulfilled, especially the land promises (Josh 11:23; 21:43-45; 23:14-15; Neh 9:7-8; Jer 32:21-23). Though the land was promised to Abraham himself, he never possessed enough to put the sole of his foot on (Acts 7:5). He did not expect or want the land of Canaan, but rather heaven (Heb 11:8-10,13-16), which is called Abraham’s bosom appropriately enough (Luke 16:22).

See Also

Truth about Abraham and the Middle East: What About the Land?
For more truth about Abraham and land in the Middle East … Abraham’s Land.