In this third day (the day of the Lord ), the Lord will have a company of saints that will experience Christian perfection.
This company of saints will be composed of mature saints: Fathers and young men (see spiritual maturity) who have come into the experience of manifesting perfection; and spiritual little children who have come into cleansing perfection.
This company of saints are described in scripture as the man-child company in Isaiah 8:18 and Revelation 12:5 because they are made up spiritual men and children:
18 Behold, I (men in the measure of the stature of the fullness of Christ– Eph.4:12-15) and the children whom the LORD hath given me are for signs and for wonders in Israel from the LORD of hosts, which dwelleth in mount Zion.
2 Out of Zion, the perfection of beauty, God hath shined.
5 And 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.
This man-child company will manifest the glory of God in signs and wonders to spiritual Israel: the church, and thus become an exalted standard and example that the rest of the church and all nations will seek to attain.
2 And it shall come to pass in the last days, that the mountain of the LORD’s house shall be established in the top of the mountains, and shall be exalted above the hills; and all nations shall flow unto it. 3 And many people shall go and say, Come ye, and let us go up to the mountain of the LORD, to the house of the God of Jacob; and he will teach us of his ways, and we will walk in his paths: for out of Zion shall go forth the law, and the word of the LORD from Jerusalem.
Any Christian who is ready to pay the price (in the fear of the Lord, prayer and obedience) of entering into perfection in this day of the Lord can be a part of this man-child company.