The Cow - 2:143
So We made you a clear-minded people so that you may be witnesses among the people and the Messenger may be a witness among you. And We changed the Qiblah, which you used to turn towards, to distinguish between those who follow the Messenger and those who turn back on their heels. Surely this is too much for anyone except those whom Allah guides. Allah will not make your faith vain. Allah is Compassionate to mankind, Most Merciful.
What is the right way?
Explained in Detail/41:30
"The angels descend upon those who follow the right path after saying: "Our Lord is Allah": "Fear not, grieve not, and rejoice in Paradise to which you are invited."
Mary/19:36
Allah is my Lord and your Lord; serve Him. This is the right way.
Yaseen/36:60
O children of Adam, did I not take a promise from you that you would not serve Satan? He is your open enemy.
Yaseen/36:61
Serve Me. This is the most right way.
The Family Of Imran/3:51
"Allah is my Lord and your Lord; serve Him. This is the right way."
The Ornaments of Gold/43:61
He (Jesus) is a source of knowledge and a sign about the Hour. So do not doubt about it (the Hour) and follow me. That is the right way.
The Ornaments of Gold/43:64
Allah is my Lord and your Lord, and to Him alone you should serve. This is the straight path.