This refers anyone who conquers. See how you translated this in [Revelation 2:7](../02/07.md). Alternate translation: "Anyone who resists evil" or "Anyone who does not agree to do evil" (See: [[rc://en/ta/man/translate/figs-genericnoun]])
To sit on a throne means to rule. Alternate translation: "to rule with me" or "to sit down on my throne and rule with me" (See: [[rc://en/ta/man/translate/figs-metonymy]])
This is an important title for God that describes the relationship between God and Jesus. (See: [[rc://en/ta/man/translate/guidelines-sonofgodprinciples]])