Please explain how you understand it?
Maybe you do know it?
Rev 1:5 And from Jesus Christ, who is the faithful witness, and the first begotten of the dead, and the prince of the kings of the earth. Unto him that loved us, and washed us from our sins in his own blood,
(MY NOTE: Christ is the 1st begotten of the dead.)
The way I read the verse, it's speaking to Jesus resurrection. He's was the 1st born from the dead.
Jesus is PREEMINENT (Col 1:18) in ALL things within our realm:
Creation: Jn 1:3 & 10, Col 1:16, 1 Cor 8:6
Redemption: Gal 3:13, Rev 5:9, Col 1:14, Rom3:24
Resurrection: Jn 11:25, Acts 4:33, 1Pet 1:3 & 3:21
Mediation: 1 Tim 2:5, Heb 8:6, 9:15, - 12:24
Judgment: Jn 5:22, Rom 2:16, 2 Tim 4:1.