سُبْحَانَ ٱللَّٰهِ
Holy Qur'an
Al-Qur'an
Kids Qur'an
I.e., He knows not only what every human being "deserves", but also what is intrinsically - though not always perceptibly - good and necessary in the context of His plan of creation. Moreover, all that exists belongs to Him alone, and man is allowed no more than the usufruct of what is commonly regarded as "property".
"Sustenance", here as elsewhere, stands for all things that support every phase of life, physical, social, intellectual, or spiritual. Cf. x. 59, n. 1447. The source of all gifts is Allah; His bounty is inexhaustible, and He gives to all; but He does not give to all in the same measure, because, out of the fullness of His knowledge and wisdom, He can judge best what is best for any of His creatures.