Divine Relations of the Trinity

I have been studying the Trinity recently, and most of my studies have been from St. Thomas Aquinas, in his *Summa Theologiae*, and he would agree that the persons are the divine Essence. One thing that confuses me is that Aquinas says the divine relations are the divine essence in the sense that we can use the terms "person" and "essence" interchangeably. [*Summa Theologicae*, Q. 28](https://www.newadvent.org/summa/1028.htm#article3) , but, if the relations (the subsistent persons) are the divine essence, how does one get out of the idea that the "essence of God is begotten" or "spirated"? Even though Aquinas rejected this view, that the essence of God can be begotten, it just seems a bit confusing to say "Jesus (as the divine relation 'filiation') is the divine essence of God, but at the same time, the essence of God isn't begotten?" this seems to be violating the classical laws of logic that x=x.