Luke 8:51

‘And when he came to the house, he did not allow any man to enter in with him, except Peter, and John, and James, and the father of the maiden and her mother.'

When they came to the house Jesus excluded from it all but Peter, John and James, and the parents. He did not want what He was about to do to be in the public domain. The selection of the three was a clear indication that something quite remarkable was going to happen. They were the three that He always chose at such times (compare Luke 9:28; Mark 14:33). They shared His most intimate moments when something unique about Himself was to be revealed. (Note how Luke has switched James and John around and paired Peter and John ready for Acts).