The Bible makes it clear that we contribute nothing to our own salvation; it is entirely God’s gift. Human nature is inherently sinful, and righteousness must come from God alone. Salvation is given through faith in Jesus Christ, who paid the full price for our sins through His death and resurrection. We do not do anything to make salvation possible except trusting in Him. Jesus has done everything necessary, offering eternal life freely to all who believe.
From a human perspective, if a person could help earn his salvation, it would present two problems. First, he could be tempted to boast and brag about earning his way to heaven (Ephesians 2:9). Second, if good works were able to contribute to salvation, there would be no assurance of whether enough good works had been completed to earn entrance to heaven. He would constantly wonder whether he had done enough. Instead, we can rest in the biblical truth that salvation is provided as a free gift.
When you receive a gift, you do not expect to pay for it. You would not call the act of accepting the gift a contribution toward earning it. In the same way, salvation is given as a free gift. We must receive it in order to experience the blessings of this gift, but accepting God's gift does not mean we are working to earn it. Eternal life is a gift from God (Romans 6:23).
Scripture is clear that Jesus is the one who has contributed everything necessary for salvation. He has paid the price for our salvation on the cross and now offers eternal life freely to those who will believe in Him by faith.