Jehovah's Witnesses believe that Jesus Christ began to rule in heaven as king of God's kingdom in October 1914, and that Satan was subsequently ousted from heaven to the earth, resulting in "woe" to humanity. They believe that Jesus rules invisibly, from heaven, perceived only as a series of "signs". They base this belief on a rendering of the Greek word parousia—usually translated as "coming" when referring to Christ—as "presence". They believe Jesus' presence includes an unknown period beginning with his inauguration as king in heaven in 1914, and ending when he comes to bring a final judgment against humans on earth. They thus depart from the mainstream Christian belief that the "second coming" of Matthew 24 refers to a single moment of arrival on earth to judge humans.