Jesus spoke many times in parables and in ways that others did not understand. So it is of the temple He would build through the spirit. He spoke of a spiritual temple that would be a body of believers who alone serve Him in spirit and in truth (John 2:19-21).
Jesus is the chief living cornerstone of the spiritual house He shed His blood to purchase as His church! (Acts 20:28), 28 Take heed therefore unto yourselves, and to all the flock, over the which the Holy Ghost hath made you overseers, to feed the church of God, which he hath purchased with his own blood. (1 Peter 2:4-10).
Ephesians 2:18-2218 For through him we both have access by one Spirit unto the Father.19 Now therefore ye are no more strangers and foreigners, but fellow citizens with the saints, and of the household of God;20 And are built upon the foundation of the apostles and prophets, Jesus Christ himself being the chief corner stone;21 In whom all the building fitly framed together groweth unto an holy temple in the Lord:22 In whom ye also are builded together for an habitation of God through the Spirit.
1 Corinthians 3:16-17