Notes on the Bible, by Albert Barnes, , at sacred-texts.com
See Deu 6:10 note.
Their groves - Render, their idols of wood: the reference is to the wooden trunk used as a representation of Ashtaroth; see Deu 7:13 and Exo 34:13 note.
The fewest of all people - God chose for Himself Israel, when as yet but a single family, or rather a single person, Abraham; though there were already numerous nations and powerful kingdoms in the earth. Increase Deu 1:10; Deu 10:22 had taken place because of the very blessing of God spoken of in Deu 7:8.
Repayeth them that hate him to their face - i. e., punishes His enemies in their own proper persons.
Flocks of thy sheep - Render it instead: "the ewes of thy sheep." The phrase is unique to Deuteronomy. The Hebrew word for "ewes" is the plural form of Ashtoreth, the well-known name of the "goddess of the Zidonians" Kg1 11:5. This goddess, called by the Classical writers "Astarte," and identified with "Venus," represented the fruitfulness of nature.
There seems to be here not so much as a reference to the plagues inflicted miraculously by God on Egypt (compare Exo 15:26), as to the terrible diseases with which, above other countries, Egypt was infested. Compare Deu 28:27, Deu 28:35. It is not without significance that Egypt, which represents in Scripture the world as contrasted with the Church, should thus above other lands lie under the power of disease and death.
The silver or gold that is on them - The silver and gold with which the statues of the gods were overlaid. Paul is probably alluding to this command in Rom 2:22; and his accusation of the Jew thus shows that the prohibition of the text was very necessary.
Lest thou be snared - As by the rich ephod made by Gideon: compare the marginal reference.