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First Thought from WikiPedia:

The 'Trimorphic Protennoia' is a Sethian Gnostic text from the New Testament apocrypha. The only surviving copy comes from the Nag Hammadi library.

I [am] the Thought of the Father, Protennoia, that is, Barbelo, the perfect Glory, and the immeasurable Invisible One who is hidden. I am the Image of the Invisible Spirit, and it is through me that the All took shape, and (I am) the Mother (as well as) the Light which she appointed as Virgin, she who is called 'Meirothea', the incomprehensible Womb, the unrestrainable and immeasurable Voice.

Like the more familiar Apocryphon of John, to which it is similar, it is thought to be from the mid-second century, and similar in style to the Gospel of John. In particular, there is great similarity with the prologue, although the prologue of the Gospel of John sets out to explicitly deny Gnosticism, using their own language against them.

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