The Bible writes “…God created man in his own image… male and female created he them.” The first man and woman were created perfect having peace, love and joy with God and with each other. They had freedom to love and obey God, but they were also free to disobey God, knowing the result would be death and judgment. Lucifer tempted them and they disobeyed God.
Sin entered into the world and corrupted everything. So anyone born from them would be a sinner. This is why we sin and are separated from God.
This is why we see so much evil in the world today.
