The theology of these rites has been considerably modified in the last 200 years, with the reintroduction of oblationary language as pertaining to an objective, material sacrifice offered to God in union with Christ. The Prayer Books of 1552, 1559, 1604 and 1662 placed sacrificial language in a post-communion prayer in order to detach it from the context of the eucharistic prayer. A prime example of these modifications can be found in the American Book of Common Prayer introduced by the first American Episcopal bishop Samuel Seabury and adopted by the General Convention of the Protestant Episcopal Church in 1789. He insisted on the adoption of a full eucharistic prayer of the non-Juror Scottish Episcopal Church Rite to replace the truncated version of the earlier English rites beginning in 1552. The adopted prayer included the words, "with these thy holy gifts, which we now offer unto thee", which were inserted after the words from the 1549 Rite "we, thy humble servants, do celebrate and make before thy Divine Majesty, and before the words "the memorial thy Son hath commanded us to make" BCP (cf. these changes in the article on Samuel Seabury). An epiclesis was also restored. The insertion of these ten words in effect undid Cranmer's theology that the sacrifice of praise and thanksgiving was restricted to words and sentiments in prayer.