I noticed that the Daily Lectionary on the PC(USA) website sometimes includes readings from the Apocrypha. Why is that?
The two-year Daily Lectionary is derived from older ecumenical lectionaries, which include readings from the Apocrypha. Although the Presbyterian Church (U.S.A) does not recognize these books as part of the canon of Scripture, we include these readings (when applicable) for the sake of ecumenical partners who share this resource, as well as for the information of Presbyterian lectionary users. On days when an apocryphal reading is included, there is always an alternate selection from the (canonical) Hebrew Scriptures provided.