Definition
Manchild is the term for the eschatological group of overcomers from Rev. 12:5: “she brought forth a man child, who was to rule all nations with a rod of iron: and her child was caught up unto God, and to his throne.” In Jones’ corpus the Manchild is the corporate firstfruits: the group of believers fully formed into the image of Christ (full huiothesia) who are taken up by harpazo to reign. The term is the standard designation for this group in the corpus.
Usage in the Corpus
Stephen Jones
For Jones the Manchild is the eschatological climax of his tagma structure: the first squadron harvest, the barley-sheaf, the firstfruits who are glorified by the first resurrection. The Manchild is not an individual (Christ) but a corporate body of overcomers formed by Christ into his image. The birth of the Manchild (Rev. 12) is the pivotal eschatological event that introduces the age of judgment and restoration. [Jones, Creation’s Jubilee, Ch. 5]
George Warnock
Warnock employs an analogous concept in his “manifestation of the sons of God” (Rom. 8:19) and the overcomers who reach the Feast of Tabernacles level. He connects this indirectly to the Manchild theme: the overcomers who achieve full sanctification constitute the end-time firstfruits.
Origin
“Manchild” is an archaic English word (male child, man-child) from the KJV rendering of Rev. 12:5. Modern translations use “a male child” or “a son, a male child.” In the restorationist tradition the term has been specialized into a technical designation for the eschatological firstfruits.