The concept was coined by Valentinus

I haven’t been able to find Two-seed movement attributed to Valentinus. But, I found this and I see his followers refer to themselves as “Christians”, and also as “the spiritual seed,” an allusion to their distinct and privileged spiritual identity. Now, this makes a lot of sense to me. I came across Valentinus a few years back when I was looking at the Nag Hamadi library. Among the Valentinian collection of Gnostic scriptures I only read the Gospel of Philip. I’ll go back to look at the rest, especially the Gospel of Truth. Which I read even thou it doesn’t contain any firsthand accounts of Jesus’ life, it does use some similar language.

Daniel Parker published a Two Seeds book in 1826

I had more luck with Daniel Parker and his book “Doctrine of the Two Seeds”. I downloaded a pdf document by Max Lee, which is actually "A Thesis Presented to the Faculty of the Graduate School Southern Baptist Theological Seminary" and I will read this later.

No agenda but Jesus!

To me Jesus is the exact opposite of an agenda. He is the awakening I have been waiting for, all my life. Once I'm awake and walk with Him I have no need for an agenda, a plan or anything else. All I have to do is listen and trust what He has to say. It’s really that simple.