How do we know God's grace is a blessing?

Isaiah 66 emphasizes that God extends His grace to those who are poor in spirit and who tremble at His word. This indicates that true blessings come not from outward appearances or ritualistic practices, but from a heart that recognizes its need for God's mercy. Grace is viewed as a transformative power that brings genuine worship and connection to God. Throughout Scripture, such themes are linked to the promise of eternal life for believers who, through grace, are built into a spiritual house.