John 20:19

19Then, when it was late on the same day, on the first of the Sabbaths, and the doors were closed where the disciples were gathered, for fear of the Jews, Jesus came and stood in their midst, and he said to them: “Peace to you.”
20:19 The doors were shut: The same power which could bring Christ’s whole body, entire in all its dimensions, through the doors, can without the least question make the same body really present in the sacrament; though both the one and the other be above our comprehension.(Challoner)
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