Scottish i think
Jessica Ennis, the athlete, is English, not Scottish.
It seems like in Ireland Jessica is used even with the last name in Irish;in Scottish Gaelic is is equated with Jessie which is Deasag/Seasag/Seasaidh.
God Beholds is the Hebrew origination.
Scottish, English, Native American
Jessica Donohoe's birth name is Jessica Webster.
Jessica Soss's birth name is Jessica Baron.
Jessica Simonsson's birth name is Jessica Cederholm.
Jessica Janos's birth name is Jessica Boyle.
Jessica Jaymes's birth name is Jessica Redding.
Jessica Chandler's birth name is Jessica Greser.
Jessica Boehrs's birth name is Jessica Boehrs.