"Making Himself God" was an accusation quite often thrown at the Savior during His earthly ministry. It was thrown by deeply religious people. What was it: malicious slander or a misunderstanding? Most of all, neither.
Here it is simply the difference between religion and Revelation. Between an external knowledge of God, as if from the outside, and that fullness of communion with Him which is impossible without the fullness of His presence in the one who communes with Him. Jesus constantly speaks to His listeners precisely about such fullness. He knows what He is talking about: He was born with this fullness. He did not have to search for it and rejoice if He managed, even for a moment, to catch a glimpse of its reflection, as ordinary people do. The fullness of the life of His heavenly Father abides in Him constantly. Of course, He understands that none of His listeners has access to it as He does.
But He knows something else as well: there is a path leading to this fullness. A path that begins in the human heart, leads to Him, and then, through the fullness of His life, to the fullness of communion with God revealed in the life of the Kingdom. And then each person becomes a son of God. Not the Son with a capital letter, of course, as He Himself is, but a son. And here this is no longer religion and not even mysticism; here it is a new being, a new existence, a new life.
In the fullness of God's life, opened through the Messiah. Through the Son with a capital letter. But to a person who has made religion the goal and meaning of his life, this seems like blasphemy. How can a human being claim the fullness of communion with God? Between God and man there is an abyss. It is never bridgeable, under any circumstances. And if someone appears who claims that one can be close to God as to a human being, and even closer, he is either a madman or a blasphemer.
Meanwhile Jesus bears witness that as Man He feels no distance between Himself and God. "I and the Father are one." There is a distinction: the Son is not the Father. But there is no distance. And the action is one. "My Father is working even now, and I am working." This lack of distance seems absolutely incredible to a religious person. The paradox is that religion arose from the feeling of this distance, and arose in order to overcome it. And now the One who has overcome it appears.
It would seem that one should simply rejoice. But it turns out that what was conceived as a means has already managed to become an end in itself. And now the specialists who manage this means are indignant when they see that it is becoming unnecessary. They are ready to do everything to get rid of the One who has devalued it. But the Kingdom does not fit into any religious framework. One has to choose, and each person makes his own choice.