All the Muslims of the world say their prayers towards the Qiblah which is Khana Kaaba but before this Qiblah Muslims say their prayers towards the Bait ul Muqadis. Why Muslims change their Qiblah?. Why they change the old qiblah of believers.Allah informed us that East and West belongs to Allah only and He just want to see who obey His apostle. The right thing is not in the direction the right path is to follow His Prophet. Hazrat Muhammad (PBUH) wants to say their prayers in Makkah such that the both qiblahs were in the same direction but when he migrated to the Madina then it become impossible to say the prayer in the same direction.
Important thing is not to follow the Jews qiblah but the important thing is to follow the instruction of Allah. If you fulfill all the conditions but you do not have faith in the Allah and His apostle then all the other things are useless. Similarly Allah want to see who will turn back. In this verse of the Holy Quran Allah clearly mentioned that East and West all belongs to only Allah and there is no sacred thing in the direction.Only the sacred thing is which Allah ordered.
We should read the following verse of the Holy Quran in which Allah already mentioned that the fools will raise the objection on the new order which we are going to order in respect of Qiblah. If you do not have same faith as Muslims then now we will not say prayers in the same direction which is sacred to Jews. Allah do not care that who will be pleased or who was angry on His order.Only Allah has the power to command His people.
"The fools among the people will say: What has turned them from their qiblah which they had? Say: The East and the West belong only to Allah; He guides whom He likes to the right path."
(Surah No: 2 & Verse No: 142)