In this message, Pastor Josh Slautterback shares how real endurance in life comes from strengthening the unseen muscles—spiritually and emotionally. Just like hikers must train more than just what looks good at the gym, we too must build inner strength that lasts through life’s toughest challenges. Learn how discipline, perseverance, and God’s love help us grow deep roots of faith when life gets hard. This powerful message from Hebrews 12 reminds us that what’s unseen is often what matters most.