(Rom 6:10) “For in that he died, he died unto sin once: but in that he liveth, he liveth unto God.” Be careful of extra-Biblical teaching; that is, reject anything that is not the Word of God. Jesus died once – period. He was only in the grave three days. He rose again, physical, bodily. Yes, the body is now transformed, but no less physical: (Luk_24:39)“Behold my hands and my feet, that it is I myself: handle me, and see; for a spirit hath not flesh and bones, as ye see me have.”