According to the Bible God sent His Son Jesus Christ into the world to save man from sins. This presents hope for mankind. The enemy Satan is trying to hide that or ignore that. Some who wants to spread error wants to show that the human race is evil and without hope. The Bible is about God's love, again that is why He sent His Son Jesus Christ to save His people from their sin and also sent His Holy Spirit to dwell, fill and help His people.
The enemy is defeated at the cross of Calvary and the blood of Jesus Christ cleanses us from all sins.
The enemy reigns only on those who have not truly trusted in Jesus Christ as their Lord and Savior.
For those who are in God's side , let us continue to submit to God , resist the devil and he will flee from you.
By the way, who is God's known Messenger, Jesus Christ Himself, the God who became flesh to save His people from their sins.