Reading this article confirms what I had often thought about Randall Terry. He is on the right side (though his methodology is often askew) of the abortion issue, but devoid of much in the way of biblical theology. Not that I had delved deep into Terry’s background, but based upon his public appearances, he seemed a bit shallow when it came to Scripture. So, no wonder that he would move into Catholicism.
I actually attended a protest led by Randall Terry some twenty years ago. Not that I was a deep theologian of any kind (I was at a protest, after all), but even I could tell he was deep in cause but shallow in theology. This doesn’t surprise me.