Claiming to be Jews (the people of God), the Synagogue of Satan persecutes those who follow Jesus the Messiah (the actual people of God). Jesus refers to them as "liars" since, in actuality, they have surrendered their identity as "true" Jews by rejecting the Jewish Messiah.
“To communicate anything to a Gentile about our religious relations would be equal to the killing of all Jews, for if the Gentiles knew what we teach about them, they would kill us openly.”
The Synagogue of Satan is mentioned twice in the Bible:
“I know thy works, and tribulation, and poverty, (but thou art rich) and I know the blasphemy of them which say they are Jews, and are not, but are the synagogue of Satan. Fear none of those things which thou shalt suffer: behold, the devil shall cast some of you into prison, that ye may be tried; and ye shall have tribulation ten days: be thou faithful unto death, and I will give thee a crown of life.” - Revelation 2:9-10
“Behold, I will make them of the synagogue of Satan, which say they are Jews, and are not, but do lie; behold, I will make them to come and worship before thy feet, and to know that I have loved thee. Because thou hast kept the word of my patience, I also will keep thee from the hour of temptation, which shall come upon all the world, to try them that dwell upon the earth.” - Revelation 3:9-10
The Synagogue of Satan plays a central role in Bible prophecy; it is used by Satan to persecute the Christian Church, murdering many and focusing on control of the religious, political, and economic systems of the whole world. But, how is it possible this tiny fragment of the total population - less than 1 percent - can attain such power?
The answer can only be that Satan and his dark angels provide the Jews the motivation, the ambition, and the tools needed to control the wheels of mankind.
There have been in past history other nations and peoples who played a part in exercising global power far beyond their size and population. We recall, for example, Greece, Rome, and Great Britain, each of which had minuscule populations but were successful militarily, culturally, and politically far beyond their borders. The Bible says that it will soon be the role of Israel and the Jewish people to do so. In fact, they already do have great powers, using other, greater nations as proxies and pawns.