That is untrue. Christ already “came back” in the form of new scriptures called the Third Testament in which He reveals the internal sense of the literal of the Old and New Testaments, line by line. Coming through the clouds in Glory means while reading the OT and NT its meaning in the spiritual or internal sense will be revealed to the reader. The Second Coming is spiritual insight into the meaning of the letter. The bloodline story is untrue because it is anchored in the material world while the Lord is anchored in the spiritual celestial realm. Nothing material can touch or alter the spirit.