The essence-energy distinction is necessary for salvation.
So there are "truths" necessary for salvation that are not proclaimed in any oecumenical council? Or do you consider the palamite synods oecumenicals?
As made clear on the other thread, you do not even know what you are arguing about when you fuss about St. Palamas. St. Palamas' teaching is 'dogma' in the same sense that the Divinity of Christ and the Humanity of Christ are dogmas--because there has always been and will always only be one Gospel. Anything which expresses that Gospel correctly is dogma, by its very nature and regardless of human recognition. The only role of councils (whether it be the 7 Ecumenical Councils, the Palamite Councils, or any local synod called upon to deliberate a doctrinal issue) is to identify what is a correct expression and condemn what is false expression when some confusion about it has arisen.
You mean that Gregory Palamas teachings are like the divinity of Christ or his humanity?
I'm saying that the fact that God is, God does things, we cannot know God in His Essence, but we know Him in His deeds were taught by the Apostles just as they taught that Christ is God and that Christ is human. All these things were taught by the Church from the beginning and the Church only needed to restate them concilliarly because of innovative heretics who came along later and thought they could 'develop' the Faith to something they found more acceptable.
Well to know if a doctrine expresses correctly the Gospel is a matter of interpretation. I think the Filioque and immaculate conception do express the Gospel correctly, so it is dogma. WIll you accept it as well?
If you can produce any evidence that the Apostles taught either rather than that they were invented out of thin air centuries later, then we'll have something to discuss.