Ephesians 1:6 - "to the praise of the glory of His grace..."
While normally translated, “to the praise of His glorious grace” or “to the praise of the glory of His grace,” I think it is worth emphasizing “His glory which is gracious, or His gracious glory.” When we behold God, we behold His glory. That glory is not sterile white fluorescent light. It is a rainbow of love and mercy, with favor and acceptance; it is dripping with grace. This helps explain why God predestined what He predestined.
This is the nature of God's glory. It is gracious.