for, behold, it is for Us to gather it [in thy heart,] and to cause it to be read [as it ought to be read].

It is for Us to collect it and to promulgate it:

Lo! upon Us (resteth) the putting together thereof and the reading thereof.

Surely on Us rests the collecting of it and the reciting of it.

Indeed, upon Us is its collection [in your heart] and [to make possible] its recitation.