How do we know that spiritual strength is important for Christians?

Spiritual strength is integral for Christians as they face trials and temptations that can easily lead them to despair or compromise. As stated in Acts 20:24, even amid suffering, Paul declared, 'none of these things move me' because of his commitment to serve the Lord distinct from worldly expectations. Being strong in the Lord allows believers to remain steadfast in faith and fulfill their roles as husbands, fathers, and leaders, embodying the love of Christ in their families and churches. Hence, it is essential for both individuals and the broader church body to depend on God’s grace for this spiritual fortitude.