1 Corinthians 15:5

and that he appeared to Cephas; then to the twelve;

'he appeared' -'Paul's point seems emphatic. The resurrection of Jesus from the dead was not. form of "spiritual" existence. Just as he was truly dead and buried, so he was truly raised from the dead bodily.' (Fee p. 728)

'What Paul delivered to them was more than an interpretation of OT scriptures as accurate as that may be. He delivered fact. Solid, immovable, concrete deeds. The death and burial which were according to scripture and could be verified by the documents of the authorities were no more factual than the resurrection.' (McGuiggan p. 189)

'appeared' -not in. vision, or subjective sense. But was actually "seen".

'He gives no complete catalog of these appearances, not because he does not know about those which he omits, but because he follows. selective principle. Paul presents those witnesses that are most important to the Corinthians..' (Lenski p. 633)

'Cephas' -Peter. (Luke 24:34 'The Lord has really risen, and has appeared to Simon.') And Peter preached. bodily resurrection of Christ. (Acts 2:31 'nor did his flesh suffer decay')

'then to the twelve' -(John 20:19; Luke 24:34). Of course minus Judas. Thomas was also absent. Later on, Paul will mention an appearance to "all the apostles." (1 Corinthians 15:7)