There are some discussions about this bird.
It has been seen in the south of Israel, among some House Sparrows, behaving very confident. The observer told me it was a little tinier, but not as tiny as the Dead Sea Sparrows he had seen in his life.
When I saw the pictures my first impression tells me that it hasn't the jizz of House Sparrow. It is very compact, has a little round head and a proportionally tiny beak.
The bird is also very pale (but I heard that there are very pale House Sparrows), has a pale/light throat too. And I know that there are pale House Sparrows in the middle east but, take a look at their body structure and their bills :
A nominate Passer domesticus taken in Israel
A ssp biblicus taken is Israel too
It seems to me impossible that regardless of the rest of the bird, if you only watch the beak size, that it can be a Passer domesticus.
I'm not 100% sure about my identification, because I've no experience with Dead Sea Sparrows, but there are persons saying it's a H. Sparrow, others saying it's a DSS. An argument about the fact that it could not be a DSS is that this species is colonial and hanging around with other DSS ; and wouldn't as here be hanging around with House Sparrows and be so confident with humans.
What do you guys think ?
Thank you for you answers