Revelation 2:1 (KJV)
Unto the angel of the church of Ephesus write; These things saith He that holdeth the SEVEN STARS in his right hand, who walketh in the midst of the SEVEN GOLDEN CANDLESTICKS;
The seven golden candlesticks are the seven assemblies. And the seven stars are the seven messengers of those assemblies (Revelation 1:20). And lastly the angel of the church is the messenger of the church.
The number seven is of significance here for seven stands for a fullness, or a completeness.
So this verse actually tells us that Jesus is between all those who are called out of this world, and that He is holding all His messengers in His hand.
The word church or assembly is translated from the Greek word εκκλησια – ekklesia (pronounced as: ek-klay-see’-ah) meaning ‘a calling out’, i.e. (concretely) a popular meeting, especially a religious congregation (Jewish synagogue, or Christian community of members on earth or in heaven or both)
What a great thing that Jesus here again confirms that He did not leave us behind as orphans but that He is with us, among us, and holds the by Him appointed messengers in His hand