Romans 6:16. God gave us free will; He gave us choice. Free will is a key aspect of the definition of human nature. We were made in His image and God gave us free will in order for us to freely love Him and worship Him. Worshiping God is our purpose and God gave us free will in order for us to fulfill our purpose.

Romans 5:12. To fully understand the definition of human nature, we first need to understand sin which is key part of our human nature. The sin nature that is in all of us is basically a nature that is disobedient to God. We were all born with a sin nature that can be traced back through our ancestors all the way back to Adam and Eve. In the Garden of Eden, God told Adam not to eat of the tree of the knowledge of good and evil (Genesis 2:17). Soon after that Adam and Eve disobeyed God and ate of the tree. This disobedient act toward God was the original sin.

Romans 6:6. The first part of the definition of Christian redemption is that redemption is the end, the death, to the controlling power of sin in our lives. Our lives no longer need to be controlled by sin. If we accept Jesus Christ as our lord and Savior, our old man, our corruptible sin nature, is crucified with him. Jesus’ death on the cross and His subsequent resurrection proved that sin and death do not have control of us.

Romans 6:5. God has a resurrection plan for all us. He desires for us to follow in Jesus' footsteps to include going through our own resurrection resulting in eternal life. We that accept Jesus as our Lord and Savior are committed to follow in His footsteps (Romans 6:5-11).

With the first man, Adam brought sin and death to mankind. Also, with a man, Jesus Christ, by His resurrection He offered life to us all (1 Corinthians 15:21-22).   We must understand that mankind has chosen to be separated from God. God did not choose to be separated from us. This separation started with Adam where he made a decision to be disobedient to God rather than obey God. It still goes on today where the tendency of our sin nature is to sin and be separated from God. But God has a resurrection plan for us to follow the path of Jesus. It is only Jesus' work on the cross that offers us the opportunity to re-establish a personal relationship with God.

Romans 6:9. Jesus' resurrection is many times thought of in abstract terms or just treated as a form of a holiday with the celebration of Easter each year. In reality it is the most important historical event that has ever occurred in the world. This unique historical event consisted of Jesus, in human form, dying on the cross and then three days later Him being resurrected from the dead to live forever. As Jesus was in human form, His resurrection proved that man can have complete victory over death and live forever in their glorified body.

The actual resurrection of a dead person is hard for us to believe because everything we see in this world is corruptible. It is decaying, growing old, and dying. We see death and decay everywhere. We see people grow old, we see the leaves turn brown, we see things rust, and we see that every living thing has a physical death in this world. This is why Jesus' resurrection is so important for us to understand and believe. His resurrection demonstrated that He was not of this world. His death was swallowed up in victory. He showed us a life without sin and death, an eternal life. The Bible tells us that only through Him can we can have victory over death (1 Corinthians 15:54-55, "So when this corruptible shall have put on incorruption, and this mortal shall have put on immortality, then shall be brought to pass the saying that is written, Death is swallowed up in victory. O death, where is thy sting? O grave, where is thy victory? .").   Jesus is the door. All we need to have is resurrection faith.

Hebrews 2:14. There is a power of darkness. It is made manifest by the power of sin and death. The scriptures tell us that the devil has the power of death ( Hebrews 2:14, "Forasmuch then as the children are partakers of flesh and blood, he also himself likewise took part of the same; that through death he might destroy him that had the power of death, that is, the devil;"). It is only through Jesus Christ that the devil is defeated at the cross. By Jesus Christ dying and then resurrecting forever, He defeated death.

Most of us think we have many choices in life, but from God's perspective we only have two. These personal choices include serving God or serving sin. One path is obedience unto righteousness to eternal life. The other path is sin unto death (Romans 6:16, "Know ye not, that to whom ye yield yourselves servants to obey, his servants ye are to whom ye obey; whether of sin unto death, or of obedience unto righteousness?").

Revelations 21:8. The third type of death is Eternal death. Eternal death is eternal separation from God. If we have not accepted Jesus Christ as our Lord and Savior, we will face death that is eternal on Judgment Day. Eternal death happens because man chooses sin (disobedience to God), and thus, we choose to be separated from God. Separation from God first starts off as spiritual death, but it will eventually turn to eternal death. This is the death we never want to face. We need to believe what the Bible says about eternal death.