Why is grace important for the salvation of infants?

Grace is the foundation of salvation, making it clear that no one—infants or adults—can earn their way into heaven through works. This is underscored in Ephesians 2:8-9, stating, 'For by grace are ye saved through faith; and that not of yourselves: it is the gift of God: not of works, lest any man should boast.' Infants, being unable to perform any action that would merit salvation, are entirely dependent on God's grace. Salvation being a gift means that God's mercy extends to those who are in their most helpless state, which includes infants who die before reaching an age of accountability. Thus, grace reassures us that God can save whom He wills, and His saving work is not limited by human ability or understanding.