What does the Bible say about spiritual health?

Spiritual health is a priority for believers, as it determines one's relationship with God. In 3 John 3-4, it is noted that John rejoiced at hearing about his followers' faithfulness to the truth, demonstrating that spiritual well-being is tied to fidelity to God's revelation. A spiritually healthy individual exhibits a vibrant relationship with Christ, stemming from both a correct confession of faith and a life that practices truth. This inward conviction transforms how one lives, leading to a life that seeks God's glory and exhibits gratitude towards Him.