And they returned from searching of the land after forty days.

Wesley's Notes

13:25 They returned after forty days - 'Tis a wonder the people had patience to stay forty days, when they were just ready to enter Canaan, under all the assurances of success they could have from the Divine power, proved by a constant series of miracles, that had hitherto attended them. But they distrusted God, and chose to be held in suspence by their own counsels, rather than to rest upon God's promise! How much do we stand in our own light by unbelief?

Matthew Henry's Concise Commentary

13:21-25 The searchers of the land brought a bunch of grapes with them, and other fruits, as proofs of the goodness of the country; which was to Israel both the earnest and the specimen of all the fruits of Canaan. Such are the present comforts we have in communion with God, foretastes of the fulness of joy we expect in the heavenly Canaan. We may see by them what heaven is.