"Jesus answered and said unto them, Destroy this temple, and in three days I will raise it up." - John 2:19 KJV

"Then said the Jews, Forty and six years was this temple in building, and wilt thou rear it up in three days?" - John 2:20 KJV

"But he spake of the temple of his body." - John 2:21 KJV

Jesus said in these verses that He Himself would raise up the temple of His body from the grave.

Jesus is the Father revealed in a human body. (John 14:7-10, John 8:19,29, John 10:30,38, John 14:20, 23, John 15:23-24, etc.).

Jesus told His disciples that after His death, burial, resurrection, and ascension, when He would no longer be with them in the flesh, He would come to them in the Spirit.

"Even the Spirit of truth; whom the world cannot receive, because it seeth him not, neither knoweth him: but ye know him; for he dwelleth with you, and shall be in you. I will not leave you comfortless: I will come to you." - John 14:17-18 KJV

The Spirit of Jesus came to them on the Day of Pentecost.

"And they were all filled with the Holy Ghost, and began to speak with other tongues, as the Spirit gave them utterance." - Acts 2:4 KJV

Just as Jesus raised His body from the grave, when He returns, He will raise our bodies from the grave by His Spirit that dwells in us. (Acts 2:38-39).

"But if the Spirit of him that raised up Jesus from the dead dwell in you, he that raised up Christ from the dead shall also quicken your mortal bodies by his Spirit that dwelleth in you." - Romans 8:11 KJV

"There is one body, and one Spirit, even as ye are called in one hope of your calling; One Lord, one faith, one baptism, One God and Father of all, who is above all, and through all, and in you all." - Ephesians 4:4-6 KJV