a relationship with God

Romans 10:9-10 (NIV)  9 If you declare with your mouth, “Jesus is Lord,” and believe in your heart that God raised him from the dead, you will be saved. 10 For it is with your heart that you believe and are justified, and it is with your mouth that you profess your faith and are saved.

 

 
Knowing your sins are forgiven is as simple as the following steps:

1. Believe in Jesus Christ.....
"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" (John 3:16).
 
2. Admit you have sinned.....
"For all have sinned and fall short of the glory of God" (Romans 3:23)
"If we say that we have no sin, we deceive ourselves, and the truth is not in us" (1 John 1:8).

3. Confess your sin and then leave it.....
"If we confess our sins, He is faithful and just and will forgive us our sins and purify us from all unrighteousness" (1 John 1:9).