Valentine Morgenstern: I knew if he received her blood in the womb, Jonathan would be the ultimate weapon. A warrior under my command, with the strength of both angels and demons.
Clary Fairchild: Why would Lilith agree to help you?
Valentine Morgenstern: Because in exchange, I gave her the one thing she always wanted. The one thing she could never have. A child.
Valentine Morgenstern: I underestimated you. Clarissa, you are my greatest creation. Not Jonathan, not Jace. You are.
Clary Fairchild: I was never yours.
Jia Penhallow: Your return is only temporary. You'll be back in hell soon enough.
Valentine Morgenstern: I wasn't in hell. I was in the dark. There was nothing but shadows... Oh! I was a shadow. And I knew it was all over.
Raziel: What is it you ask of me?
Valentine Morgenstern: The immediate death of all evil-blooded creatures, demon and Downworlder alike, as well as the disloyal Shadowhunters... who protect them.
Raziel: The destruction of the souled creatures of the Downworld, and of our own Nephilim? That is not Heaven's wish.
Valentine Morgenstern (after killing Jace): Clarissa, I... I'm sorry. I had no choice. The two of you together are too dangerous.
Valentine Morgenstern: I've come make you a deal.
Seelie Queen: Hah! What could you have that I would possibly want? (Valentine whispers something in her ear) Walk with me, won't you? It's such a lovely night.
Valentine Morgenstern: Though not so beautiful as what tomorrow may bring to the both of us.
Sebastian Morgenstern: I'm a dead weight, am I? I know when I'm being played.
Valentine Morgenstern: Believe me. Where I need to go, it's too dangerous for you to follow. You, Jonathan Morgenstern, are brilliant... and as cunning and vicious as I have ever hoped for. Listen to me. I will come back for you. I promise.
Sebastian Morgenstern: Jace is trying to sabotage me. He's trying to... make Clary hate me. But I swear to you, I will end him before I let that happen.
Valentine Morgenstern: Listen. Once we have the mirror, none of this will matter.
Sebastian Morgenstern: I can't have Clary hate me. Not after everything I've been through.
Valentine Morgenstern: Clary doesn't care about you.
Sebastian Morgenstern: Yes, she does.
Valentine Morgenstern: No, Jonathan. She only cares about an English Shadowhunter named Sebastian Verlac. When she realizes the truth about you she will only despise you.
Sebastian Morgenstern: No. You are the one that she despises. I am her brother! She loves me.
Valentine Morgenstern (to Sebastian): I have always dreamed of creating the ultimate warrior, and now... that dream is a reality. You have always been my greatest creation, son. Always.
Sebastian Morgenstern: You always cared more about the Mortal Instruments than you did your own son.
Valentine Morgenstern: That's not true. Despite everything I've done, I have always... always cared about you.
Sebastian Morgenstern: Do not lie to me. If you truly, truly cared about me, you would have never sent me away.
Valentine Morgenstern: I made a mistake. It was Jace that was...
Sebastian Morgenstern: Shut up!
Valentine Morgenstern: The sword still compels the truth. Jonathan... not a day goes by that I don't think about you. Where I am not haunted by that decision I made. To send you to Edom.
Valentine Morgenstern: Why keep the Verlac boy's visage if you're weaker for it?
Sebastian Morgenstern: I think it rather suits me. Don't you? As does the accent. A bit more... charming than a demonic beast with burnt flesh.
Valentine Morgenstern: I may be in a cell, but at least I'll be in Alicante... where the air doesn't reek of Downworlders.