“Then David said to Nathan, “I have sinned against the Lord .” Nathan replied, “The Lord has taken away your sin. You are not going to die.” – 2 Samuel 12:13

If God forgives a man who was an adulterer and a murderer, and elevates him to king – why do you think God won’t forgive you?

“… EVERYONE who believes may have eternal life in Him.
For God so loved the world that He gave His One and only Son, that WHOEVER believes in Him shall not perish but have eternal life.
For God did not send His Son into the world to condemn the world, but to save the world through Him.
Whoever believes in Him is not condemned, but whoever does not believe stands condemned already because they have not believed in the name of God’s One and only Son.”
John 3:15-18

I think that says it all.