God did His part of salvation by sending His Son, Jesus Christ, to die for our sins.
It took the sinless man to die for the sinful before there was a remission of sin.
Now, it is our turn to do our part by living a new life created through the regenerated power of God by the new birth.
We must live deliberately for God. We must live to please God, who has called us out of darkness into His marvelous light.
But you are not like that, for you are a chosen people. You are royal priests, a holy nation, God’s very own possession. As a result, you can show others the goodness of God, for he called you out of the darkness into his wonderful light. 1 Peter 2:9
We must make an effort to make our daily living a worthy example of followers of Jesus.
We also need to make sacrifices as there will be challenges for our new faith.
And so, dear brothers and sisters, I plead with you to give your bodies to God because of all he has done for you. Let them be a living and holy sacrifice—the kind he will find acceptable. This is truly the way to worship him. Romans 12:1
Lastly, we must ask God for the power to live a new life.
But to all who believed him and accepted him, he gave the right to become children of God. John 1:12
If we do these, the price of our salvation will never be in vain.