In the Old Testament, God sent Joshua into the Promised Land and commanded him to kill everybody in all the cities.

...................................................Neither women, child or man, anything that could breathe was not to be left alive.

.......................If Jesus had lived in His human form in the Old Testament, He wouldn't have done things the way Joshua did.

Joshua wasn't wrong. He obeyed God and God was operating in the manner He had to during that time.