The Root of David & Christ Ahnsahnghong

There are countless churches in the world. They inist that they believe in God and follow the teachings of God. Among many churches can you distinguish and find the true church that Jesus established through his blood? The bible says that we have to find the Second Coming Jesus as the root of David first. (Rev 22:16) If we do, we will find the church. Then, what is the sign of the root of David? God said that He would make the everlasting covenant with him. (Isa 55:3) Can you imagine the everlasting covenant? In fact, Jesus established and kept it with His disciples before he died on the cross. The hint is "The Last Supper". You can find the anwer through the below video.