In John 2:19, was Jesus referring to His physical body when He said, “Destroy this temple, and in three days I will raise it up”?

In John 2:19–21, Jesus says: “Destroy this temple, and in three days I will raise it up.” The Jewish leaders understood Him to mean the literal temple in Jerusalem, but the passage notes that He was speaking of “the temple of His body.” How is this understood in Christian theology? Was Jesus explicitly referring to His physical body as the “temple,” and if so, what is the significance of this metaphor?