I hope some of this helps.
In Rev 1:20 we read of seven churches having seven stars (which are seven angels) and seven lampstands which symbolize those churches. In other words,
7 Churches,
7 Stars/Angels and,
7 Lampstands,
or the number 777. Remember, the Church is an institution near and dear to God. In the The Book of Revelations of 5:6, we see a picture of Jesus Christ as a slain Lamb. We find Him having three characteristics, namely:
7 Horns,
7 Eyes and,
7 Spirits of God,
777 also represents Holy Trinity of God the Father, Son and Holy Spirit.