Revelation 11:3,4 KJV
3 And I will give power unto my two witnesses, and they shall prophesy a thousand two hundred and threescore days, clothed in sackcloth.
4 These are the two olive trees, and the two candlesticks standing before the God of the earth.
Psalm 52:8 KJV
8 But I am like a green olive tree in the house of God: I trust in the mercy of God for ever and ever.
Two candlesticks are the two churches that did not offend God in Revelation.
Revelation 11:7 KJV
7 And when they shall have finished their testimony, the beast that ascendeth out of the bottomless pit shall make war against them, and shall overcome them, and kill them.
The two witnesses testimony are killed in the house of God/ external church. Extinguishing their ability to save people through the Holy Spirit.
Holy Sprit has been removed from the house of God. Salvation continues outside the external churches.