'Searching' in the Bible

Then Joshua, the son of Nun, sent two men from Shittim secretly, with the purpose of searching out the land, and Jericho. So they went and came to the house of a loose woman of the town, named Rahab, where they took their rest for the night.

And it was said to the king of Jericho, See, some men have come here tonight from the children of Israel with the purpose of searching out the land.

Then the king of Jericho sent to Rahab, saying, Send out the men who have come to you and are in your house; for they have come with the purpose of searching out all the land.

And they went into the hill-country and were there three days, till the men who had gone after them had come back; and those who went after them were searching for them everywhere without coming across them.