Athanasius of Alexandria — on 1Pet 3:18-19 (Letter 59, Sections 5-6)

“This Body it was that was laid in a grave, when the Word had left it, yet was not parted from it, to preach, as Peter says, also to the spirits in prison [1 Peter 3:19]. And this above all shows the foolishness of those who say that the Word was changed into bones and flesh. For if this had been so, there were no need of a tomb. For the Body would have gone by itself to preach to the spirits in Hades. But as it was, He Himself went to preach, while the Body Joseph wrapped in a linen cloth, and laid it away at Golgotha. [Mark 15:46]”