Why is grace essential for our service to God?

The sermon clearly articulates that our attempts at service to God without grace are futile. Hebrews 12 emphasizes that it is 'by grace that we may serve God,' which underscores the fact that our service is not about fulfilling a duty or obligation but rather reflecting the grace we have been shown. This grace transforms our hearts, enabling us to serve not out of compulsion but out of love and gratitude for what Christ has done for us on the cross. Only through grace can we truly worship and honor God in spirit and in truth, as we acknowledge our position as recipients of His unmerited favor.