The third Sunday of Advent is known as Gaudete Sunday which means “rejoice!” In the Advent Wreath, it is represented by the pink candle and signals our proximity to the birth of our Saviour, Jesus Christ.
Joy is a very deep biblical theme, running densely through the prophets and Psalms and found in particular concentration around Christ in his birth and resurrection (cf. Luke 2:10-13, 24:52; see also Luke 15:7, 10, 11-32).
We would do well to contrast joy and pleasure: for one, joy is often borne of trial, whereas pleasure is opposed to suffering; further, joy can be very communal—as is clearly the case with ancient Israel and as manifest in our liturgical jubilation, particularly at Christmas and Easter; whereas pleasure tends to be focused on the individual’s subjective experience. Finally, true joy is lasting, whereas pleasure is by its nature fleeting and temporary.