Why is the church referred to as a spiritual house?

The concept of the church being a 'spiritual house' is vividly captured in 1 Peter 2:5, where believers are described as 'lively stones' fitted together to form a temple for God's dwelling. This understanding highlights that the church is not merely a physical building but a living entity composed of individuals who are meant to collectively worship and serve God. The analogy of a spiritual house serves to contrast the Old Testament temple, which was made of physical stones, with the New Testament church, which comprises believers indwelt by the Holy Spirit. This spiritual house is built upon the solid foundation of Christ, the chief cornerstone, ensuring that it is God's presence and glory that dwells within. Therefore, the essence of the church is centered on Christ and His redemptive work, evidenced through the lives of its members who are committed to offering spiritual sacrifices acceptable to God. This shift from physical to spiritual emphasizes the intimate relationship believers share with Christ and their role in His body.