Deuteronomy 31:15-18
15 Then the Lord appeared at the Tent in a pillar of cloud, and the cloud stood over the entrance to the Tent.
16 And the Lord said to Moses: “You are going to rest with your fathers, and these people will soon prostitute themselves to the foreign gods of the land they are entering. They will forsake me and break the covenant I made with them.
17 On that day I will become angry with them and forsake them; I will hide my face from them, and they will be destroyed. Many disasters and difficulties will come upon them, and on that day they will ask, ‘Have not these disasters come upon us because our God is not with us?’
18 And I will certainly hide my face on that day because of all their wickedness in turning to other gods.