WSC Q.41: Where is the moral law summarily comprehended?
The moral law is summarily comprehended in the ten commandments. (Deut. 10:4, Matt. 19:17)
WLC Q.98: Where is the moral law summarily comprehended?
The moral law is summarily comprehended in the ten commandments, which were delivered by the voice of God upon Mount Sinai, and written by him in two tables of stone; (Deut. 10:4, Exod. 34:1–4) and are recorded in the twentieth chapter of Exodus. The four first commandments containing our duty to God, and the other six our duty to man. (Matt. 22:37–40)
WCF 19.2.
This law, after his fall, continued to be a perfect rule of righteousness; and, as such, was delivered by God upon Mount Sinai, in ten commandments, and written in two tables: (James 1:25, James 2:8, 10–12, Rom. 13:8–9, Deut. 5:32, Deut. 10:4, Exod. 34:1) the first four commandments containing our duty towards God; and the other six, our duty to man. (Matt. 22:37–40)