The destiny of the 144,000 Jews proves them to be the manchild (Rev. 14:1-5). They will appear "before the throne" in Heaven and "before the four beasts and the elders" who are before the throne. It is expressly stated that they will be redeemed "from the earth" and "from among men."
Therefore they cannot be earthly people who will go through the last three and one half years of the tribulation, and who will form the nucleus around which the twelve tribes will be gathered in the Millennium. The fact that they will be in heaven between the seventh trumpet and the first vial shows that they will have been raptured. Under these circumstances if they are not raptured as the manchild in the middle of the Week, just when would they be raptured?
The three messenger angels immediately following the vision of the 144,000 in Heaven, will proclaim their particular messages from the middle of the Week inwards (Rev. 14: 6-11),so it stands to reason that the vision will be fulfilled in the place it is given, which is immediately after the manchild is caught up to God under the seventh trumpet, and before the vials and the ministry of the messenger angels. God's plan for man page 888 (2).