We now treat an important technical aspect of Trinitarian thought: Relations!
The Scriptures call the “First Person” Father and the “Second Person” Son. Father and Son are relational terms. Each term points us to another. Father points us to son, just as “master” points us to “servant.”
God is one in essence, but there are three really distinct relations in God. The only basis for distinction in God is relation. This is dogma. Let’s work to understand the theological guts behind this dogma.