Numbers 14:14-18

and they will tell it to the inhabitants of this land. They have heard that You, Lord, are in the midst of this people, because You, Lord, are seen eye to eye, while Your cloud stands over them; and You go before them in a pillar of cloud by day, and in a pillar of fire by night.

Now if You put this people to death all at once, then the nations who have heard of Your fame will say,

‘Since the Lord could not bring this people into the land which He promised them by oath, He slaughtered them in the wilderness.’

So now, please, let the power of the Lord be great, just as You have declared, saying,

‘The Lord is slow to anger and abundant in mercy, forgiving wrongdoing and violation of His Law; but He will by no means leave the guilty unpunished, inflicting the punishment of the fathers on the children to the third and the fourth generations.’