They could not trust the pillar of cloud and fire to show them the way to it, but had a better opinion of their own politics than of God's wisdom. Yet God was no way accessory to the sin that followed, for the sending of these spies was so far from being the cause of the sin that if the spies had done their duty, and the people theirs, it might have been the confirmation of their faith, and of good service to them. Some think that they are all named for the sake of two good ones that were among them, Caleb and Joshua. Notice is taken of the change of Joshua's name upon this occasion, v. 16. He was Moses's minister, but had been employed, though of the tribe of Ephraim, as general of the forces that were sent out against Amalek.
Prayers prevail for promises, and promises direct and encourage prayers.
Some think that Moses designed, by taking the first syllable of the name Jehovah and prefixing it to his name, which turned Hoshea into Jehoshua, to put an honour upon him, and to encourage him in this and all his future services with the assurances of God's presence. Jesus is the same name with Joshua, and it is the name of our Lord Christ, of whom Joshua was a type as successor to Moses, Israel's captain, and conqueror of Canaan. There was another of the same name, who was also a type of Christ, Zec. Joshua was the saviour of God's people from the powers of Canaan, but Christ is their Saviour from the powers of hell. The instructions given to those spies.