His body did not go missing:
Mat 28:11 Now when they were going, behold, some of the watch came into the city, and shewed unto the chief priests all the things that were done.
Mat 28:12 And when they were assembled with the elders, and had taken counsel, they gave large money unto the soldiers,
Mat 28:13 Saying, Say ye, His disciples came by night, and stole him away while we slept.
Mat 28:14 And if this come to the governor's ears, we will persuade him, and secure you.
Mat 28:15 So they took the money, and did as they were taught: and this saying is commonly reported among the Jews until this day.
1Co 15:4 And that he was buried, and that he rose again the third day according to the scriptures:
1Co 15:5 And that he was seen of Cephas, then of the twelve:
1Co 15:6 After that, he was seen of above five hundred brethren at once; of whom the greater part remain unto this present, but some are fallen asleep.