Augustine of Hippo
Catena Aurea · Johannesevangelium 2
Then answered the Jews and said unto him, What sign shewest thou unto us, seeing that thou doest these things? Jesus answered and said unto them, Destroy this temple, and in three days I will raise it up. Then said the Jews, Forty and six years was this temple in building, and wilt thou rear it up in three days? But he spake of the temple of his body. When therefore he was risen from the dead, his disciples remembered that he had said this unto them: and they believed the Scripture, and the word which Jesus had said.
(iv. de Trin. c. 9. [v.]) Or it may be that this number fits in with the perfection of the Lord’s Body. For six times forty-six are two hundred and seventy-six days, which make up nine months and six days, the time that our Lord’s Body was forming in the womb; as we know by authoritative traditions handed down from our fathers, and preserved by the Church. He was, according to general belief, conceived on the eighth of the Kalends of April, (March 24) the day on which He suffered, and born on the eighth of the Kalends of January1. (Dec. 25) The intervening time contains two hundred and seventy-six days, i. e. six multiplied by forty-six.