Deuteronomy 29:26 - Matthew Poole's English Annotations on the Holy Bible

i.e. Whom God had not given or divided to them, as their portion, or for their worship, but hath divided them unto all nations, as it is said, Deuteronomy 4:19, not for their worship, but for their use and service. So he speaks here of the sun and moon and stars, which were the principal gods worshipped by the neighbouring nations. Or, to whom none hath given this, i.e. that they should be worshipped, or, to whom no worship belongs. So this is an argument against idolatry. Or, who had not given unto them, to wit, any thing: it is an ellipsis of the accusative, which is very frequent: gods known to them by no benefits received from them, as they had from their God, whom therefore it was the greater folly and ingratitude to forsake.