User blog comment:B214/Question & Answers 5/@comment-207.96.205.2-20160517060930/@comment-1359322-20160520105722

Don't think too much on that, Ophis also made the chant for DxD L too. And in that (a rough version by Ariel Saeba) chant there's a sentence that says "The Father of All Devils..."

Yet the Lucifer never gave birth to all the 72 Pillars and Extra Demon. Zekram and Mephisto who existed since era of the original Yondai Maou are the prime examples. So the chant are something that are just a way with words, don't take the meaning literally, you know. Cause if Lucifer gave birth to all Devils Zekram and Mephisto would be Rizevim's brother.