Illustrate the concept of commitment to faith and unity in Christianity using a line art style. The scene might depict various believers, denoting different descents like Caucasian, Middle-Eastern, South Asian, etc., seemingly navigating through a path riddled with detours representing life's challenges. One can be focused on a distant destination, symbolic of Rome, showing devotion and determination to follow God's plans amidst life changes. Their united effort, symbolizing 'striving together', should echo the essence of fellowship, prayer, partnership and perseverance. Ensure that your interpretation leans towards respectful and devotional representation of the Christian faith.