Herman Witsius, Dutch theologian, pastor, and professor of the seventeenth century, was a major proponent of covenant theology, and in this 11-volume collection, his greatest works on grace, law, sin, and holiness are collected. Witsius was most famous for The Economy of the Covenants Between God and Man, a systematic exploration of Old Testament law, New Testament grace, the grace of God in both covenants, and how Christ fulfills each covenant. It is included in this collection, as well as his commentary on the Apostles’ Creed, a volume on the authorship of the Pentateuch, and a book exploring godliness, law, grace, and the role of the believer. Witsius’ work is characterized by careful regard for Scripture and a desire to reconcile different denominations.