The Repentance - 9:37
Changing the location of the Holy Months is the height of disbelief. The disbelievers are led astray by it. They make it lawful one year and holy one year in order to make it coincide with the number of months that Allah has made holy. Thus they violate the sanctity of the months that Allah has made holy. Their evil deeds look beautiful in their eyes. Allah does not guide the disbelieving people.
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.