When I read the Bible I only see 2 advents being mentioned. I think you have to really read into the text to see some kind of middle "secret" advent or rapture. Maybe there will be a pre-trib rapture but I have serious doubts
How many people would believe in the pre-trib rapture if they had not been taught by someone that there was going to be one? I would venture to say that no one would. That doesnt automatically make it wrong but it should raise a red flag.
This verse is speaking of the first and second advent.
Isaiah 61:2 To proclaim the acceptable year of the LORD, and the day of vengeance of our God; to comfort all that mourn;
Notice that Jesus closes the book before he reaches the "and the day of vengeance" part. The reason he does this is because that is the second advent. I dont see any room for a secret rapture.
Luke 4:17-21 (KJV)
And there was delivered unto him the book of the prophet Esaias. And when he had opened the book, he found the place where it was written, The Spirit of the Lord is upon me, because he hath anointed me to preach the gospel to the poor; he hath sent me to heal the brokenhearted, to preach deliverance to the captives, and recovering of sight to the blind, to set at liberty them that are bruised, To preach the acceptable year of the Lord. And he closed the book, and he gave it again to the minister, and sat down. And the eyes of all them that were in the synagogue were fastened on him. And he began to say unto them, This day is this scripture fulfilled in your ears.