RCA does not recognize Shepherd of Hermas as Scripture. RCA affirms Protestant canon of 66 books and does not extend canon to 2nd-century writings. Shepherd is recognized as important witness to post-apostolic Christianity.\n\nBelgic Confession and Heidelberg Catechism define Scripture as Old and New Testaments; no extra-biblical documents added. RCA may study Shepherd for historical understanding of early church.