No, the KOG did not come WHEN Jesus was resurrected. Nor even when he ascended. But he was...Pup will have to answer for himself, but if I am rightly understanding he is saying the kingdom of God came with power when Christ resurrected from the grave. Certainly, the majority of those standing there would not have physically died before coming to see and understand this and to know it meant the Kingdom of God has come with power even over death.
Rom 1:4 KJV And declared to be the Son of God with power, according to the spirit of holiness, by the resurrection from the dead:
... declared [This day have I begotten thee] to be the son of God WITH POWER, by his resurrection ACCORDING TO THE SPIRIT OF HOLINESS! Without holiness no man can see the Lord. He was declared to be the "heir of all things (Heb 1:2)" when he ascended to the Father later on the same day of his resurrection.
Jesus rose/anistemi to be the rightful heir of all things, when he ascended to the Father on resurrection day.
Eph 4:9-10 KJV 9 (Now that he ascended, what is it but that he also descended first into the lower parts of the earth? 10 He that descended is the same also that ascended up far above all heavens, that he might fill all things.)
The ascension referred to here in Eph 4 is referring to him being endued with all power, having the authority to give gifts unto men... gifts of the holy ghost!... apostles, prophets, etc. And the descension herein described in that same passage, (think of the corollary thought of this ascension) is when Christ humbled himself in becoming a man.
Phi 2:7-8 KJV 7 But made himself of no reputation, and took upon him the form of a servant, and was made in the likeness of men: 8 And being found in fashion as a man, he humbled himself, and became obedient unto death, even the death of the cross.
Phi 2:9 KJV Wherefore God also hath highly exalted him, and given him a name which is above every name:
He humbled himself when he descended to earth in human form. He was highly exalted when he ascended to heaven.
Christ "rose" to his exalted position when he ascended to heaven on resurrection day. But the KOG did not come at that time. He was only made to be the appointed heir of all things. The world to come has not been put into the subjection of angels, but unto the Son.
Heb 1:3-6 KJV 3 Who being the brightness of his glory, and the express image of his person, and upholding all things by the word of his power, when he had by himself purged our sins, sat down on the right hand of the Majesty on high; 4 Being made so much better than the angels, as he hath by inheritance obtained a more excellent name than they. 5 For unto which of the angels said he at any time, Thou art my SON, this day have I begotten thee? And again, I will be to him a Father, and he shall be to me a Son?
6 And again, when he BRINGETH in the firstbegotte INTO the WORLD, he saith, And let all the angels of God worship him.
Heb 2:5 KJV For unto the angels hath he not put in subjection the world to come, whereof we speak.
Just before the event of the transfiguration, Jesus said that some would "experience with the senses" [SEEN] the coming of the kingdom. The word "seen" is the word eido, [often translated as the word know, and sometimes as "see(n)"] and means to experience with one of the 5 senses. It is the root word of the word HADES. Which literally means the UNSEEN realm. Unseen, as in not experienced by the senses (cf. Lazarus and the rich man).
Jesus said that some would experience the KOG before they were to die. And they did... on the mount of Transfiguration. They call it the Mt. Of Transfiguration because Jesus was transfigured before them into his body of immortality. Flesh and blood cannot inherit the KOG. But mortals must first put on immortality and corruptibles must put on incorruption. No more dying to the living and death is swallowed up in victory for those who have already died... those corrupted by death!
Jesus said, "Tell no man what you have experienced (seen) until the son of man has ascended (anistemi) from the dead." The KOG comes with the ascension of the dead in Christ... the dead in Christ shall rise/ anistemi first!
Jesus was declared to be the son of God with power when he ascended carrying his holiness [AS A RESURRECTED MAN] to the Father... after his resurrection!
Be Blessed
The PuP