Deuteronomy 3:3

3:3 So the Lord our God did indeed give over to us King Og of Bashan and his whole army and we struck them down until not a single survivor was left.

Deuteronomy 28:55

28:55 He will withhold from all of them his children’s flesh that he is eating (since there is nothing else left), because of the severity of the siege by which your enemy will constrict you in your villages.