User blog comment:Jopjopjop/Volume 19 Spoilers/@comment-104.7.80.176-20150119211407/@comment-16281343-20150119225314

He wants to live for himself, he wants to live for Rias and the others. He doesn't want to live for revenge anymore. Something like that.

That's why his holy-demonic swords became clearer as with the saying, "The sword reflect its owner/user"