"And he said unto me, [IT IS DONE]. I am Alpha and Omega, the beginning and the end. I will give unto him that is athirst of the fountain of the water of life freely." (Revelation 21:6)
God declares to the Apostle John, [IT IS DONE] (Grk. ginomai), and this is in the PERFECT TENSE: which is a completed action that is never to be repeated again. This is the ETERNAL STATE, which has YET TO TAKE PLACE. This is why those in the Family of God can be GUARANTEED that this WILL take place, and that He [IS] TRUE AND FAITHFUL to bring it to pass (cf. Deut. 7:9; 1 Sam. 26:23; Ps. 36:5; 40:10; 88:11; 89:1-2,5,8,24). I'm quite certain that all of has had an experience with "close" friends or family members who just weren't there for us when we needed them the most; well . . . God will NEVER fall into that category, because He is not a mortal creature prone to failure with excuses as to why they have let you down. God has NEVER failed me even ONCE, and I don't "hope" that He will not fail me in the future . . . I KNOW that He will NOT fail me, and such is an IMPOSSIBILITY to suggest that this may ever occur.
God is True and Faithful: (Jer. 42:5; Rev. 21:5)
God is TRUE: (Dan. 8:26; 1 Pet. 5:12)
God is Faithful and True: (Rev. 3:14; 19:11; 22:6)
God is Truth: (Ex. 34:6; Deut. 32:4; 1 Kgs. 17:24; 2 Sam. 2:6; Ps. 25:5; Jn. 8:32; 14:6)
"But our God is in the heavens: he hath done whatsoever he hath pleased." (Psalm 115:3)
Even if supernatural entities possessed the capability to move back and forth in time or space via hyper/inter-dimensional travel (cf. 2 Kgs. 6:17; Job 1:6; Jn. 3:13; 2 Cor. 12:2-4; Rev. 4:1; 19:11; 21:2), they would in NO WAY hinder or thwart the Absolute Sovereignty of God's Divine Purpose; it would be an IMPOSSIBILITY regardless of how many futile attempts they may strive at doing so, because the finality of every one of their "choices" is SEEN by God, and NOTHING escapes Him (Ps. 139:2-8; Dan. 2:22; Lk. 8:17; 12:2-3; Heb. 4:13). The Triune God and His Christ will reign as Sovereign over ALL for Eternity, and every creature is powerless to stop Him, and their vain efforts will only prove that it is God Almighty who will have the LAST LAUGH (cf. Jn. 15:5; 19:11; 1 Cor. 3:19-20).
God is the Eternal I AM: He does not "look into the future" to decide what choices to make in the here and now based on what [WILL] or [MAY] occur; He [IS] Self-Sustaining and Self-Existent. All of God's Divine and Immutable Attributes (i.e., His "Omniscience, Omnipotence, Omnipresence") are intertwined in a perfect tapestry as they are revealed in History to His Family, and verbs often used in the PAST TENSE point to the CERTAINTY that the event mentioned WILL come to pass (Isa. 53:1-11; Rom. 8:18,21,28; 2 Tim. 2:10). Nevertheless, ALL prophetic events on God's Timetable will most assuredly come to pass without hindrance or variableness; whether they are vengeance upon the wicked, or promises to those who Love Him (cf. Josh. 21:45; Rom. 4:20-21; 2 Cor. 1:20; Phil. 1:6; Heb. 10:23; 2 Pet. 3:9; Rev. 6:9-11).
"The kings of the earth set themselves, and the rulers take counsel together, against the Lord, and against his anointed, saying, Let us break their bands asunder, and cast away their cords from us. [HE THAT SITTETH IN THE HEAVENS SHALL LAUGH]: the Lord shall have them in derision. [THEN SHALL HE SPEAK UNTO THEM IN HIS WRATH], and vex them in his sore displeasure. Yet have I set my king upon my holy hill of Zion. I will declare the decree: the Lord hath said unto me, Thou art my Son; this day have I begotten thee. Ask of me, and I shall give thee the heathen for thine inheritance, and the uttermost parts of the earth for thy possession. Thou shalt break them with a rod of iron; thou shalt dash them in pieces like a potter's vessel." (Psalm 2:2-9)
"[THE RIGHTEOUS SHALL REJOICE WHEN HE SEETH THE VENGEANCE]: he shall wash his feet in the blood of the wicked. So that a man shall say, Verily there is a reward for the righteous: verily he is a God that judgeth in the earth." (Psalm 58:10-11)
When all is said and done, it is the Lord God Almighty and His Christ (i.e., God's Anointed) who will reign FOREVER as the Sovereign Potentate over All Creation.
"And the [SEVENTH] (7 is indicative of completion; for God's Ways are Perfect) angel sounded; and there were great voices in heaven, saying, [THE KINGDOMS OF THIS WORLD ARE BECOME THE KINGDOMS OF OUR LORD, AND OF HIS CHRIST; AND HE SHALL REIGN FOR EVER AND EVER]. And the four and twenty elders, which sat before God on their seats, fell upon their faces, and worshipped God, Saying, We give thee thanks, O Lord God Almighty, which art, and wast, and art to come; because thou hast taken to thee thy great power, and hast reigned. And the nations were angry, and thy wrath is come, and the time of the dead, that they should be judged, and that thou shouldest give reward unto thy servants the prophets, and to the saints, and them that fear thy name, small and great; and shouldest destroy them which destroy the earth." (Revelation 11:15-18)