The children of Israel should have been subdued by God’s threefold judgment on the rebels in ch. 16 and by God’s vindication in this chapter. However, they still complained. This shows the perverseness of the rebellious nature of fallen mankind (cf. Rev. 20:7-9). It is no wonder that none of these children of Israel, except Joshua and Caleb, were permitted to enter into the promised land (Num. 14:28-30).