The Two Witnesses are two human beings who will be given extraordinary power just before Christ's return. They will give one final warning to this world.
Who fulfills the roles of the Two Witnesses? Revelation 11 and Zechariah 4 shed light on the early work and fundamental character of these end-time prophets.
The olive trees in Zechariah 4:11 refer to the Two Witnesses who pour oil (spiritual instruction) into a golden bowl, supplying the churches with nourishment.
The seven golden lamps symbolize 7 churches, empowered by abundant oil, manifested as spiritual words. Zerubbabel is a type of Christ, finishing the Temple.
The Two Witnesses have authority from God to annihilate those who interfere with their work as well as power over weather patterns and natural elements.
The first major concern of the Two Witnesses will be directed to the church rather than to the world at large, expunging worldliness out of the church.
God's hand was definitely involved in the scattering of the church. We should respond by growing and preparing ourselves for His Kingdom.
God gave us a calendar, assigning the responsibility for its maintenance to the nation of Israel, not to the church or private individuals.