This will create a paste that the rub will stick to. Here is a recipe for the rub I use on pork shoulders. After you apply a layer of mustard to the pork shoulder, completely coat the shoulder with a good BBQ rub.
yes, its a thing, a noun is a person place or thing. Shelter is a usually used as a noun: We built a shelter to sleep in during the snowstorm. It is also sometimes a verb: We were told to shelter in place during the fire. The trees sheltered us from the hail.
REFUGE. ref'-uj: A place of resort and safety. The principal words in the Old Testament are machceh (Psalms 14:6; 46:1; 62:7,8; Isaiah 4:6, etc.), and manoc (2 Samuel 22:3; Psalms 59:16, etc.), both applied chiefly to God as a refuge for His people.