13 He declared to you his covenant, the Ten Commandments, which he commanded you to follow and then wrote them on two stone tablets.

Read Deuteronomy 4:13 Using Other Translations

And he declared unto you his covenant, which he commanded you to perform, even ten commandments; and he wrote them upon two tables of stone.
And he declared to you his covenant, which he commanded you to perform, that is, the Ten Commandments,and he wrote them on two tablets of stone.
He proclaimed his covenant—the Ten Commandments —which he commanded you to keep, and which he wrote on two stone tablets.