How do we know the grace of God is saving grace?

The concept of saving grace is critical in understanding the biblical doctrine of salvation. According to Acts 15:11, it is through the grace of our Lord Jesus Christ that we are saved, highlighting that grace is not an offer subject to our acceptance but an affirmation of salvation's effectiveness. This grace compels God to act for our redemption in accordance with His will, reaffirmed in Ephesians 2:8-9 where it is stated that we are saved by grace through faith, as a gift from God, not of works. Hence, true grace is always effective and saving.