'Outside' in the Bible

But one of the Sanhedrin, a Pharisee named Gamaliel, a man of learning in the law, of whom all the people had a high opinion, got up and made a suggestion for the men to be put outside for a little time.

But Peter made them all go outside, and went down on his knees in prayer; and turning to the body, he said, Tabitha, get up. And, opening her eyes, she saw Peter and got up.

And hearing the voice of Peter, in her joy she went running, without opening the door, to say that Peter was outside.

And on the Sabbath we went outside the town, by the river, where we had an idea that there would be a place of prayer; and, being seated, we had talk with the women who had come together.

Why, in your opinion, is it outside belief for God to make the dead come to life again?