1 Samuel 27:8

And Saul smote the Amalekites from Havilah until thou comest to Shur, that is over against Egypt. And he took Agag the king of the Amalekites alive, and utterly destroyed all the people with the edge of the sword.

This is the land that yet remaineth: all the borders of the Philistines, and all Geshuri,

Nevertheless the children of Israel expelled not the Geshurites, nor the Maachathites: but the Geshurites and the Maachathites dwell among the Israelites until this day.

And they drave not out the Canaanites that dwelt in Gezer: but the Canaanites dwell among the Ephraimites unto this day, and serve under tribute.

Neither did Ephraim drive out the Canaanites that dwelt in Gezer; but the Canaanites dwelt in Gezer among them.

And he took Geshur, and Aram, with the towns of Jair, from them, with Kenath, and the towns thereof, even threescore cities. All these belonged to the sons of Machir the father of Gilead.

And this is the reason of the levy which king Solomon raised; for to build the house of the Lord, and his own house, and Millo, and the wall of Jerusalem, and Hazor, and Megiddo, and Gezer. For Pharaoh king of Egypt had gone up, and taken Gezer, and burnt it with fire, and slain the Canaanites that dwelt in the city, and given it for a present unto his daughter, Solomon’s wife. And Solomon built Gezer, and Beth–horon the nether,

And it came to pass, when David and his men were come to Ziklag on the third day, that the Amalekites had invaded the south, and Ziklag, and smitten Ziklag, and burned it with fire;

But Absalom fled, and went to Talmai, the son of Ammihud, king of Geshur. And David mourned for his son every day. So Absalom fled, and went to Geshur, and was there three years.

So Joab arose and went to Geshur, and brought Absalom to Jerusalem.

And Absalom answered Joab, Behold, I sent unto thee, saying, Come hither, that I may send thee to the king, to say, Wherefore am I come from Geshur? it had been good for me to have been there still: now therefore let me see the king’s face; and if there be any iniquity in me, let him kill me.

For thy servant vowed a vow while I abode at Geshur in Syria, saying, If the Lord shall bring me again indeed to Jerusalem, then I will serve the Lord.

So Moses brought Israel from the Red sea, and they went out into the wilderness of Shur; and they went three days in the wilderness, and found no water.

And the Lord said unto Moses, Write this for a memorial in a book, and rehearse it in the ears of Joshua: for I will utterly put out the remembrance of Amalek from under heaven. And Moses built an altar, and called the name of it JEHOVAH–nissi: For he said, Because the Lord hath sworn that the Lord will have war with Amalek from generation to generation.

Then came Amalek, and fought with Israel in Rephidim.