Azazel is not content in Hell, but herein lies their domain, left to them by their Lord.
He doesn't get too close, doesn't dare, because he's many things and as bold as Lilith is not one of them, but he kneels to plead his case, "I want to walk the Earth, to open the gates for our freedom and yours, and when I do-"
When you have crawled your way out, rings the very bars themselves, only then will I ask for a favor and not before, how the doubt of the Father stings, and you will not fail me.