Jude 25, ” To the only God our Savior through Jesus Christ our Lord be glory, majesty, might, and authority before all time and now and unto all eternity. Amen.” Because this verse includes “unto all eternity” it is speaking about New Jerusalem.
God our Savior and Jesus Christ our Lord, who is the Lamb of God, will be on the throne in New Jerusalem (Rev. 22:1, 3). Because God through Jesus Christ is our Savior, we will share New Jerusalem with Him.
Jude 25 speaks of three time periods: “before all time and now and unto all eternity.” The “before” period has passed but we can cooperate with the Triune God now and unto eternity. What God seeks “unto all eternity” He wants to develop in us “now.”
“Glory, majesty, might, and authority” are four characteristics of the Triune God to be developed in us “now” and displayed “unto all eternity.” Glory is the expression in splendor; majesty, the greatness in honor; might, the strength in power; and authority, the power in ruling.*
Whether we understand these four characteristics or not, we know from Jude that God wants them expressed and we should be assured that the development of this expression is “through Jesus Christ.” We can pray simply, Lord, develop these characteristics in me and in the Christians around me.
Since “glory, majesty, might, and authority” will be to God in eternity, they certainly will be to God in New Jerusalem and in the whole new creation.