Three days after they had made the treaty with the Gibeonites, the Israelites learned that they were neighbors, living among them.

Joshua 9:9
"Your servants have come from a very distant land," they replied, "because of the fame of the LORD your God. For we have heard the reports about Him: all that He did in Egypt,

Joshua 9:15
And Joshua made a treaty of peace with them to let them live, and the leaders of the congregation swore an oath to them.

Joshua 9:17
So the Israelites set out and on the third day arrived at their cities--Gibeon, Chephirah, Beeroth, and Kiriath-jearim.

Joshua 9:22
Then Joshua summoned the Gibeonites and said, "Why did you deceive us by telling us you live far away from us, when in fact you live among us?

And it came to pass at the end of three days after they had made a league with them, that they heard that they were their neighbors, and that they dwelled among them.