Then they attacked En Mishpat (that is, Kadesh) again, and they conquered all the territory of the Amalekites, as well as the Amorites who were living in Hazazon Tamar.

Now Sarai, Abram's wife, had not given birth to any children, but she had an Egyptian servant named Hagar.

They came back to Moses and Aaron and to the whole community of the Israelites in the wilderness of Paran at Kadesh. They reported to the whole community and showed the fruit of the land.

So when we cried to the Lord, he heard our voice and sent a messenger, and has brought us up out of Egypt. Now we are here in Kadesh, a town on the edge of your country.

Then we left Horeb and passed through all that immense, forbidding wilderness that you saw on the way to the Amorite hill country as the Lord our God had commanded us to do, finally arriving at Kadesh Barnea.

for both of you rebelled against me among the Israelites at the waters of Meribah Kadesh in the desert of Zin when you did not show me proper respect among the Israelites.

Then Saul struck down the Amalekites all the way from Havilah to Shur, which is next to Egypt.

The Lord's shout shakes the wilderness, the Lord shakes the wilderness of Kadesh.

Gerar

and the borders of Canaan extended from Sidon all the way to Gerar as far as Gaza, and all the way to Sodom, Gomorrah, Admah, and Zeboiim, as far as Lasha.

and Asa and his army chased them as far as Gerar. The Cushites were wiped out; they were shattered before the Lord and his army. The men of Judah carried off a huge amount of plunder.

General references

So Abraham stayed in the land of the Philistines for quite some time.