Numbers 14:14-16

14And they will tell the inhabitants of this land about it. They have already heard that you, Lord, are with these people and that you, Lord, have been seen face to face, that your cloud stays over them, and that you go before them in a pillar of cloud by day and a pillar of fire by night. 15If you put all these people to death, leaving none alive, the nations who have heard this report about you will say, 16‘The Lord was not able to bring these people into the land he promised them on oath, so he slaughtered them in the wilderness.’