Toward the end of the second century, Irenaeus, the bishop of Lyons, wrote a text called Adversus Haereses (Against the Heresies), and the principle heresy that he identified therein was Gnosticism. […] Scan through Irenaeus’s voluminous writings, and you will find the word “body” over and over again. Creation, Incarnation, Resurrection, the theology of the Church, sacraments, redemption, the Eucharist, etc. all involve, he argued, bodiliness, materiality. For Irenaeus, redemption is decidedly not tantamount to the escape of the soul from the body; rather, it is the salvation and perfection of the body.
—from the Word On Fire article Bruce Jenner, The “Shadow Council,” and St. Irenaeus by Fr. Robert Barron