Matthew 24:27

For as the lightning cometh out of the east, and shineth even unto the west; so shall also the coming of the Son of man be.- Matthew 24 _27

As Jesus continues to teach on eschatology, He mentions for the first time, the rapture! So far, there has been no gathering, and the gathering with Him in the sky is not hidden!
What role has John Nelson Darby and Cyrus Schofield have to play in this? And why? This is Matthew 24 verse 27.