Revelation 17:10 in the King James Version
And there are seven kings: five are fallen, and one is, and the other is not yet come; and when he cometh, he must continue a short space.
Context
9 Here is the mind that has wisdom. The seven heads are seven mountains on which the woman sits.
10 They are seven kings. Five have fallen, the one is, and the other has not yet come. When he comes, he must continue a little while.
11 The beast that was, and is not, is himself also an eighth, and is of the seven; and he goes to destruction.