The church in Smyrna is not found in the book of Acts or in the epistles. These verses contain the only biblical record of the church in Smyrna.
The deity of Jesus (8) “These things says the First and the Last”
God applied this title to Himself in, Isaiah 44:6. Jesus is revealed taking on this title Himself. He is the eternal One who transcends time and space, Colossians 1:17. Jesus is the eternal “I AM”, John 8:58.
The humanity of Jesus (8) “...who was dead, and came to life”
How could the eternal One die? Jesus took on humanity being born of a virgin. He died on the cross “for our sins according to the scriptures,” 1 Corinthians 15:3. Jesus was buried but resurrected on the third day. The threat of death at any moment hung over every Christian in Smyrna. This would have been a real encouragement to them.