The sermon by David Green discusses the presence of an already existing church, as described in a text, where the church conducted its business following the Lord's instructions. A key theme is the promise of perpetuity given to the church, particularly in verse 8, which mentions that the church members would receive power from the Holy Ghost to become witnesses in various regions, including Jerusalem, Judea, Samaria, and to the ends of the earth. This promise is emphasized as transcending their lifetimes, highlighting that the church's mission and existence are not dependent on their own power but on divine empowerment.

In this book we find many patterns and directions given and we start off right here in our text that we read. In chapter 1 we find a church already in existence meeting and conducting business just as our Lord had instructed them to do. They had a promise of perpetuity. Verse 8, He said, Ye shall receive power after the Holy Ghost has come upon you, and you shall be witnesses unto me, both in Jerusalem and in all Judea and in Samaria and unto the uttermost part of the earth." This promise goes way beyond their lifetimes. And below it, understand this was not by their own power or ability.