This article is about the Second Coming not the Rapture. There are no signs of the Rapture. It can happen at any time and without notice. But there are signs of the Second Coming and the church is told to watch for those signs.
As the final few grains of sand slip through the hourglass, God is using every means at His disposal to get our attention and to get us to make that conscious decision to trust in the promise Jesus made in the Bible.