The Second London Confession of Faith was issued, in part, to set the record straight with the general public that Thomas Collier’s heterodox views on the Trinity and the eternality of Christ’s human nature did not represent the Particular Baptist community as a whole. The latter is addressed in the confession’s strong statement on the full divinity and humanity of Christ united in his one person.
The Son of God, the second Person in the Holy Trinity, being very and eternal God, the brightness of the Fathers glory, of one substance and equal with him: who made the World, who upholdeth and governeth all things he hath made: did when the fullness of time was come take unto him mans nature, with all the Essential properties, and common infirmities thereof, yet without sin: being conceived by the Holy Spirit in the Womb of the Virgin Mary, the Holy Spirit coming down upon her, and the power of the most High overshadowing her, and so was made of a Woman, of the Tribe of Judah, of the Seed of Abraham, and David according to the Scriptures: So that two whole, perfect, and distinct natures, were inseparably joined together in one Person: without conversion, composition, or confusion: which Person is very God, and very Man, yet one Christ, the only Mediator between God and Man.
Contra Collier’s position on the eternality of Christ’s human nature, the confession asserts that Christ “did when the fullness of time was come take unto him mans nature, with all the Essential properties, and common infirmities thereof, yet without sin.” The human nature was assumed at the incarnation and did not exist prior to this point in human history. At this point, the framers of the Second London Confession were following the wording found in the Westminster Confession and Savoy Declaration. Just after this section, however, the Second London adapts language from the First London Confession not included in either of these historic Protestant confessions. This wording further emphasized the full humanity assumed by the second person of the Trinity at Bethlehem. They added: “the Holy Spirit coming down upon her, and the power of the most High overshadowing her, and so was made of a Woman, of the Tribe of Judah, of the Seed of Abraham, and David according to the Scriptures.” This issue was important because these Baptists believed that the same human nature possessed by Eve, Judah, Abraham, and David was shared by the Christ. Only in this way could the prophecies concerning the Messiah’s coming be fulfilled.