I think the people of Israel did not have the same motives for sending out the 12 spies as God had. In verse 2, God commands to send out men to search the land that He gives to Israel. In verse 18, Moses commands them to search out the land to see “whether they be strong or weak”. This is the case of doing the right thing with the wrong motives! The result: a whole generation died before Israel entered into the Promised Land.
Numbers 13 – Spying Out the Land