There are no Scriptures that support our old nature being nailed to the cross with Jesus. Our old nature is part of our physical bodies, that is, our flesh. It will die along with our physical bodies. But there is a Scripture somewhere that says that something was nailed to the cross with Jesus. I'm not sure where it is. It may be in the Book of Hebrews somewhere and speaks something of the ordinances made out against us being nailed with the Jesus on the cross. My interpretation is that the indictment brought against us through the Law is nailed along with Jesus on the cross, resulting in us being crucified with Christ, dead to the Law and to sin. Paul says that the spirit of life in Christ has set us free from the law of sin and death. We could say that the law of sin and death was nailed to the cross with Jesus, but did not rise from the dead with Jesus. But we rose with Him to newness of life totally free from the law of sin and death. We don't live according to our spiritual performance but live by faith in the Son of God who loves us and gave Himself for us.