How do we know Christ's union with the church is true?

The truth of Christ's union with His church is firmly established in Scripture, particularly in Hebrews 2:14, which states that Christ partook of flesh and blood like His people. This union is not superficial; it embodies a deep connection, making Christ the source of life and action for the church, akin to how a head governs its body. This intimate relationship assures believers of Christ's empathic understanding of their struggles and needs, as He is 'touched with the feeling of our infirmities.' Such scriptural foundations encourage believers to trust in their connection with Christ and assure them of His ever-present help and comfort.