[kosta50]

owing to the common substance or ousia

So, in the western "jargon" the ousia is translated as substance? Am I to assume, then, that the substance in this case means the same as essence or nature?

[Hermann the Cherusker]

So, in the western "jargon" the ousia is translated as substance? Am I to assume, then, that the substance in this case means the same as essence or nature?

"Father and Son and Holy Spirit: indeed three Persons but one essence, substance, or nature entirely simple." (4th Council of the Lateran, AD 1215)