Revelation 16:14-16 (15), "Behold, *I* come AS A THIEF. [period]" is indeed a "SECOND COMING [to the earth]" passage (note: not a "Rapture / SNATCH [IN THE AIR]" passage).
Matthew 24:42-44 (45-51) likewise CORRESPONDS [/is parallel passage to] that found in Luke 12:36,37,38,40-42,43-45,46-48...