en_tn/deu/32/31.md

their Rock ... our Rock

"The Rock" here is a proper name that Moses gives to Yahweh, who, like a rock, is strong and able to protect his people. Translate "Rock" as in Deuteronomy 32:4. (See: rc://en/ta/man/translate/figs-metaphor)

our enemies' rock is not like our Rock

The enemies' idols and false gods are not powerful like Yahweh.

just as even our enemies admit

"not only do we say so, but our enemies say so also"