Salvation is one of the key concepts of God’s revelation to humanity. The biblical idea of salvation involves three notions.
First is the rescue from danger, harm, or even death of an individual, group, or nation. Most specifically salvation is the rescue from sin and death.
Second it is the renewing of the spirit. Scripture explains that humanity fell from the original condition of moral purity into the state of sin. God’s salvation always renews the spirit of a person to lead a life that is morally pleasing to Him.
Third, it is the restoration of a right relationship with God. One of the effects of sin is separation from God.