The distinction between the definite article and the indefinite article is obvious. With respect to the flawless, perfect precision of the Qur'an, I would like to know whether there is an in depth analysis of "The path" versus "A path" in tafseer books or in other sources.
In my view, the distinction is crucial, considering that in Arabic, the chosen word for "path" has no plural. (Thus the figurative link is that there is only one (straight) path to Allah.) So the use of "the way" is somewhat already implied, but "a path" still eludes me. Some examples:
The (straight) path
Show us the straight path, [1:6]
Say, "Each [of us] is waiting; so wait. For you will know who are the companions of the sound path and who is guided." [20:135]
But indeed, those who do not believe in the Hereafter are deviating from the path. [23:74]
If it had been our Will, We could surely have blotted out their eyes; then should they have run about groping for the Path, but how could they have seen? [36:66]
And We guided them on the straight path. [37:118]
A (straight) path
Truly! Allah is my Lord and your Lord, so worship Him (Alone). This is a straight path. [3:51]
And how could you disbelieve while to you are being recited the verses of Allah and among you is His Messenger? And whoever holds firmly to Allah has [indeed] been guided to a straight path. [3:101]
By which Allah guides those who pursue His pleasure to the ways of peace and brings them out from darknesses into the light, by His permission, and guides them to a straight path. [5:16]