Since those who had been baptized into Christ constituted the “body of Christ” (Galatians 3:27), and the New Testament house/temple of the Lord (Ephesians 2:19-22), then logically, those who had been baptized into Moses (1 Corinthians 10:1-2) constituted the “body of Moses”, and the Old Testament “household” of Jehovah (Numbers 12:6-7, Hebrews 3:1-6). Jesus’ words in Mathew 23:38, “your house is left to you desolate”, not only pointed to the destruction of the temple in Jerusalem, but to the “household” of Old Covenant Israel, the “body of Moses”. Those of the body of Moses (Old Covenant Israel) who had joined themselves to the body of Christ through baptism, were being raised from the dead through the the establishment of the New Covenant world. Those who had rejected the body of Christ and remained in the body of Moses – the Old Covenant world – were perishing (2 Corinthians 2:14-16). In AD70 through the destruction of the Roman “eagle”, the dead “body” of Moses – the “household” of Old Covenant Israel – along with the temple itself, was left to them completely desolate. The bondwoman and her son had been cast out.
The Institute Of Fulfilled Eschatology