It will not end with Gaza. "From Nile to Euphrates.." Check your map. Compare with Torah:

Genesis 15:18-21: God confirms the promise to Abraham, specifying the boundaries of the land:

"On that day the LORD made a covenant with Abram, saying, 'To your offspring I give this land, from the river of Egypt to the great river, the river Euphrates, the land of the Kenites, the Kenizzites, the Kadmonites, the Hittites, the Perizzites, the Rephaim, the Amorites, the Canaanites, the Girgashites and the Jebusites.'"