The spirit of God would bring life and light from darkness and chaos (see Genesis 1:2). This would give people a new ability to follow God's rules and regulations.
In the past, God's Spirit empowered individuals for specific tasks in service to the Lord (see Judges 3:10; 1 Samuel 16:13).
In the future, God's Spirit would empower more people to live holy lives (see Joel 2:28–29). These renewed people would live in Israel, making it suitable for God's presence to dwell among them again.