I remember my perplexity when I first encountered the doctrine of the Son’s eternal generation (i.e., being eternally begotten of the Father). I was preparing for seminary by reading Louis Berkhof’s classic Systematic Theology, and I found the topic overly speculative. I recognized the importance of affirming that the Son of God is not a creature but is Himself God. But I could not conceive why it was necessary to discuss the nature of the Son’s begetting in such detail. Where in the Bible would one get such an idea? And why does it matter?
It turns out that it matters a great deal and that it’s not as speculative as it may seem at first.