Religion, Way of Religion and Open Way.

A basic need is to understand the difference between 

Religion, Way of Religion and Open Way.

The Religion (Deen) before Allah is Islam

(Inna alddeena AAinda Allahi alislam) (3:19)

The same Religion (Deen) has He established for you as that which He enjoined on Noah

(SharaAAa lakum mina alddeeni ma wassa bihi noohan) (42:14) 

Then We put thee on the Way of Religion (ShareeAAat): so follow thou that Way

(Thumma jaAAalnaka AAala shareeAAatin mina alamri faittabiAAha) (45:18)

To each among you have we prescribed a Way of Religion (ShareeAAat) and an Open Way

(Minhaj) (jaAAalna minkum shirAAatan waminhajan) (5:48)