1 Coronthians 6:19-20
19 Do you not know that your body is a temple of the Holy Spirit who is in you, whom you have received from God?
You are not your own; 20 you were bought at a price. Therefore glorify God with your body.
Excellent explanation of "born again"

... A Temple for animal blood sacrifices is no longer needed for atoning of mankind's sin.
To be born again is to receive a call and answer it. The only way I can explain the call is that it rips your inner most parts and shows you how God sees you. You are a sinner and have sinned against Him. You have believed in God but this is totally different. You answer that call initiated by the Spirit by confession and repentance.
On the Ark's top were replicas of 2 cherubim angels looking down in wonder at the center of the lid, called the Mercy Seat. This was where the high priest sprinkled the sacrificial blood once a year on the Day of Atonement as he prayed for God to forgive the sins of his people.
Matthew 27:51 ... "Behold, the veil of the Temple was rent in twain from the top to the bottom; and the earth did quake, and the rocks rent." This curtain separated the second room called the Holy of Holies from the first room, the Holy Place.
The meaning should've been clear enuf to Israel's religious leaders. The need for the Jewish sacrificial system for atonement that God had given Israel was done with the
*advent of a New Covenant. The perfect finished sacrifice for sin had been accomplished in both a spiritual and literal sense. The barrier separating man's fallen (sinful) nature from the Lord's presence was no longer necessary (
Hebrews 9:11—10:22)
.
* The advent of a "New Covenant" first began with the birth of the King of kings and Lord of lords.