'Flesh' in the Bible

And Jesus answered him, "You are blessed, Simon son of Jonah, because flesh and blood did not reveal this to you, but my Father in heaven!

and said, 'For this reason a man will leave his father and mother and will be united with his wife, and the two will become one flesh'?

So they are no longer two, but one flesh. Therefore what God has joined together, let no one separate."

Stay awake and pray that you will not fall into temptation. The spirit is willing, but the flesh is weak."