Gaza.

Genesis 10:19
and the borders of Canaan extended from Sidon toward Gerar as far as Gaza, and then toward Sodom, Gomorrah, Admah, and Zeboiim, as far as Lasha.

Joshua 15:47
Ashdod, with its towns and villages; Gaza, with its towns and villages, as far as the Brook of Egypt and the coastline of the Great Sea.

an harlot.

Genesis 38:16-18
Not realizing that she was his daughter-in-law, he went over to her and said, "Come now, let me sleep with you." "What will you give me for sleeping with you?" she asked. . . .

Ezra 9:1, 2
After these things had been accomplished, the leaders approached me and said: "The people of Israel, including the priests and Levites, have not kept themselves separate from the surrounding peoples whose abominations are like those of the Canaanites, Hittites, Perizzites, Jebusites, Ammonites, Moabites, Egyptians, and Amorites. . . .