One of the benefits of studying history is that we discover the commonality we have with those who’ve gone before us. As believers, this is especially good because, as the writer of Hebrews says, we are “surrounded by a great cloud of witnesses,” and this bolsters our faith.
The Second London Confession of 1689 was a statement of beliefs written by the English (Particular) Baptists in 1689 (the first one written in 1644). It follows closely to The Westminster Confession (1646), though in its original title, the Baptists are clear that the confession is for and by those who are “baptized upon profession of their faith.” In the 18th century, the Philadelphia Association of Baptist Churches (1707) adopted it as their confession.
Regarding perseverance, the Second London Confession states,
Those whom God hath accepted in the beloved, effectually called and sanctified by his Spirit, and given the precious faith of his elect unto, can neither totally nor finally fall from the state of grace, but shall certainly persevere therein to the end, and be eternally saved…This perseverance of the saints depends not upon their own free will, but upon the immutability of the decree of election, flowing from the free and unchangeable love of God the Father, upon the efficacy of the merit and intercession of Jesus Christ and union with him, the oath of God, the abiding of his Spirit, and the seed of God within them, and the nature of the covenant of grace; from all which ariseth also the certainty and infallibility thereof.
There is comfort in knowing, like our brothers and sisters in Christ in 17th century London and 18th century Philadelphia, that the God who accepts us in Jesus Christ, and who calls us, sanctifies us, and empowers us with faith, will keep us to the end.
The salvation that God begins in us, He will keep to the end. Hallelujah!
Soli Deo gloria.