وَيُضِلُّ مَنْ يَشَاءُ وَيَخْذُلُ وَيَبْتَلِي عَدْلًا
Allah allows whom He wills to go astray, withholds support, and tests, in justice.
Khidhlān refers to being deprived of enabling help, whereas ibtilāʾ refers to trial and testing.
No divine judgment is founded upon injustice; Allah acts in wisdom and justice.