King(s) and Son(s) - Explanation


Apostle John has revealed that God of Heaven as three person (Father, Word and Holy Spirit) - because there are three who are testifying in Heaven: the Father, the Word, and the Holy Spirit, and these three are one -  1 John 5:7


And as a single person, Son Jesus Christ is representing all three of them (Holy Spirit, Father, and the Son) - and there are three who are testifying in the earth: the Spirit(Holy Spirit), and the water(Father), and the blood(Son) and the three are into the one(Jesus Christ) - 1 John 5:8