144,000 Faithful Witnesses and the Wrath of God (Revelation 14-15) - from www.HeartofAShepherd.com.

As we come to Revelation 14 and 15, we are prophetically in the latter half of the Great Tribulation. As John looked toward the future tribulation, he beheld “a Lamb” (Revelation 14:1). With him were 144,000 evangelists. As John looked on, he observed three angels sent from the throne of God as messengers.
Revelation 15 continued the record of events and judgments that followed the seventh angel, who sounded the seventh trumpet (Revelation 11:15).