Today’s quote comes from the 1689 Baptist Confession of Faith. Specifically, it is from the section “The Holy Scriptures”, seventh paragraph (or 1.7 in some copies).

Some things in Scripture are clearer than others, and some people understand the teachings more clearly than others. However, the things that must be known, believed, and obeyed for salvation are so clearly set forth and explained in one part of Scripture or another that both the educated and uneducated may achieve a sufficient understanding of them by properly using ordinary measures.

(see above)