Word by Word Analysis

لَوْ أَرَدْنَآ أَن نَّتَّخِذَ لَهْوًا لَّٱتَّخَذْنَـٰهُ مِن لَّدُنَّآ إِن كُنَّا فَـٰعِلِينَ 17

Had We intended to take a diversion, We could have taken it from [what is] with Us - if [indeed] We were to do so.