"When a righteous person

willfully practices unrighteousness, he will be disconnected  from God.

He will die a spiritual death from God for all eternity, unless he repents.

Example: Judas

To repent: 

To ask God's forgiveness by trusting in the atoning blood of Yeshua Jesus.

Colossians 1:20

If a person sincerely

repents and changes

his/her ways, and makes their amends, that person will reconnect with God through the atoning blood of Yeshua Jesus, 

and will joyfully live forever with the Godhead.

Example: Peter

Ezekiel 33: 18, 19