Explaining the use of "we" in 18:80-81

The following verses have been receiving some criticism >And as for the boy, his parents were believers, and **we** feared that he would overburden them by transgression and disbelief. So **we** intended that their Lord should substitute for them one better than him in purity and nearer to mercy. (18:80-81; from Sahih International) What do they mean by "we"? It can't be referring to the Royal "We" for Allah since 18:80 has "فَخَشِينَآ" which is translated as "so we feared". The question is how could fear be attributed to Allah SWT? I need help.