Albert Barnes Commentary Deuteronomy 4:19

"and lest thou lift up thine eyes unto heaven, and when thou seest the sun and the moon and the stars, even all the host of heaven, thou be drawn away and worship them, and serve them, which Jehovah thy God hath allotted unto all the peoples under the whole heaven." — Deuteronomy 4:19 (ASV)

Divided - that is, “whose light God has distributed to the nations for their use and benefit, and which, therefore, being creatures ministering to human convenience, must not be worshipped as humanity’s lords.”