This paper considers and argues against old and recent readings of Hume according to which his account of moral judgement is non-cognitivist. In previous discussions of this topic, crucial metaethical distinctions—between sentimentalism and non-cognitivism and between psychological and semantic non-cognitivism—are often blurred. The paper aims to remedy this and argues that making the appropriate metaethical distinctions undermines alleged support for non-cognitivist interpretations of Hume. The paper focuses in particular on Hume’s so-called ‘motivation argument’ and argues that it is a poor basis for non-cognitivist interpretations. While there is textual support for attributing to Hume what may be called ‘modally weak’ motivational inter...