The Trinity. This chapter examines Abelard’s first major writing about the divine Trinity, the Theologia ‘Summi boni’, written in 1119–20 and condemned as expounding heresy at the Council of Soissons in 1121. Abelard emphasizes the capacity of pagan philosophers to gain insight into the supreme good as much as prophets of the Old Testament. He applies his theory of language to words used about God to explain how Christians can speak of three divine persons as names given to signify different attributes of God, namely his power, wisdom and goodness.
Keywords: Abelard, Trinity, philosophers, prophets, heresy,