And with your spirit.
Minor changes here, but some sound awfully familiar. As I recall, back in the late 1960s and early 70s, we used to say Lord I am not worthy to receive you under my roof." Sounds like they are going back to that. Also, was it not customary in past decades to say "I have sinned through my fault, through my most grievous fault" before they shortened that? This sound almost like they are going back to some old ways when it comes to some of these responses.
Shouldn't it be Y'all's spiritS? ;-)
Why not, "And also with your spirit too." ?