The Hebrew adjective yagea (יָגֵעַ) means weary, exhausted, or tired from labor. It describes the state of one who has worked to the point of depletion — physically, emotionally, or spiritually worn out. This word appears in some of Scripture's most tender passages about rest and divine renewal.
Isaiah 40:28–31 is the supreme theological treatment of yagea. The everlasting God does not grow weary (yagea), but He gives power to the faint and strengthens the powerless. Those who wait on the LORD will 'run and not be weary.' This is a direct promise that God's inexhaustible energy is available to the exhausted believer. Jesus echoes this in Matthew 11:28: 'Come to me, all who labor and are heavy laden, and I will give you rest.' The gospel is the answer to human weariness — not by eliminating work, but by providing a divine source of renewal that outlasts human depletion.