WCF 19.5.
The moral law doth for ever bind all, as well justified persons as others, to the obedience thereof; (Rom. 13:8, 9, Eph. 6:2, 1 John 2:3–4, 7–8) and that, not only in regard of the matter contained in it, but also in respect of the authority of God the Creator, who gave it. (James 2:10, 11) Neither doth Christ, in the Gospel, any way dissolve, but much strengthen this obligation. (Matt. 5:17–19, James 2:8, Rom. 3:31)