In Revelation 14:1 the 144,000 overcomers are not just in Jerusalem; they are on the peak of Zion. The overcomers, the vital groups, are today’s Zion.
There is no other way to reach this high peak except by praying. It is more than evident that Jerusalem is here as a big realm of Christians, but where is Zion, the overcomers? In the book of Revelation what the Lord wants and what the Lord will build up is Zion, the overcomers. The overcomers are the very Zion, where God is. This is the intrinsic reality of the spiritual revelation in the holy Word of God. We have to realize what the Lord’s recovery is. The Lord’s recovery is to build up Zion. Paul’s writings unveil this to the uttermost, but not many saw this in the past. (Practical Points Concerning Blending, ch. 2 & 5, by Witness Lee)