Male and Female Forever?

In a blog I read put out by desiringgod.org and well known pastor and author John Piper, I read an article today titled "Male and Female Forever? Complementarity in the New Creation" (See here) and written by Colin Smothers, a guest writer. I read with interest this brother's arguments for the fact that resurrected saints will continue to be male and female, with male and female body parts, and I must say that his arguments for resurrected bodies retaining such parts were very weak, especially when compared to arguments against that view. Further, he never told us why we would have body parts that we no longer needed. Any way you can read and decide for yourself. In my long series on the afterlife, I wrote on this issue in several chapters. (See here, here, here, here) After reading Colin's arguments, I see no reason to change my views.