Monotheism in Jewish Writings: Letter of Areastas
[Eleazar] began first of all by demonstrating that God is one, that his power is shown in everything, every place being filled with his sovereignty, and that none of the things on earth which men do secretly are hidden from him, but rather that all the deeds of any man are manifest to him, as well as that which is to come to pass.
Letter of Aristeas
Letter of Areastas, 132
p. 2:21
Charlesworth, J. H. (1985). The Old Testament Pseudepigrapha and the New Testament: Expansions of the “Old Testament” and Legends, Wisdom, and Philosophical Literature, Prayers, Psalms and Odes, Fragments of Lost Judeo-Hellenistic Works. Yale University Press.