After three days the leaders went through the camp

Caleb drove out ¹  from there three Anakites – Sheshai, Ahiman, and Talmai, descendants of Anak.

So about three thousand men went up, but they fled from the men of Ai.

Three days after they made the treaty with them, the Israelites found out they were from the local area and lived nearby. ¹ 

Pick three men from each tribe. I will send them out to walk through the land and make a map of it for me. ¹ 

“Go through the camp and command the people, ‘Prepare your supplies, for within three days you will cross the Jordan River and begin the conquest of the land the Lord your God is ready to hand over to you.’” ¹ 

She told them, “Head ¹  to the hill country, so the ones chasing you don’t find you. ²  Hide from them there for three days, long enough for those chasing you ³  to return. Then you can be on your way.”

They went ¹  to the hill country and stayed there for three days, long enough for those chasing them ²  to return. Their pursuers ³  looked all along the way but did not find them. ⁴ 

from the tribe of Naphtali: Kedesh in Galilee (a city of refuge for one who committed manslaughter), Hammoth Dor, and Kartan, along with the grazing areas of each – a total of three cities.

They returned and reported to Joshua, ¹  “Don’t send the whole army. ²  About two or three thousand men are adequate to defeat Ai. ³  Don’t tire out the whole army, for Ai is small.” ⁴ 

But stay about three thousand feet behind it. ¹  Keep your distance ²  so you can see ³  which way you should go, for you have not traveled this way before.”

Within Issachar’s and Asher’s territory Manasseh was assigned Beth Shean, Ibleam, the residents of Dor, En Dor, the residents of Taanach, the residents of Megiddo, ¹  the three of Napheth, ²  and the towns surrounding all these cities. ³ 

So the Israelites set out and on the third day arrived at their cities – Gibeon, Kephirah, Beeroth, and Kiriath Jearim.