Which figure of speech do you find in the expression “And Joy, whose hand is ever at his lips Bidding adieu”?

Personification means the attribution of a personal nature or human characteristics to something non-human, or the representation of an abstract quality in human form.
In the given lines from Keats’s famous poem ‘Ode on Melancholy’, joy which is an abstract quality is represented in human form with his hand “ever at his lips”.

Source: Oxford Languages