What Is Faith? by J. Gresham Machen is a classic. First published in 1925, it’s a relevant today as it was then. Machen was one of the men who defended biblical orthodoxy in the 1920’s and 30’s during the Fundamentalist-Modernist controversy. He helped found Westminster Theological Seminary and the Orthodox Presbyterian Church.
Machen’s answer to the question “What is faith?” is clear, thorough, and biblical. He defines, explains, and defends what the Bible calls faith in chapters called “Faith in God,” “Faith in Christ,” “Faith Born of Need,” “Faith and the Gospel,” “Faith and Salvation,” “Faith and Works” (which is especially good), and “Faith in Hope.”
This is a book every Christian should read, even if you’ve never heard of J. Gresham Machen. It will help clear up misconceptions about faith and bolster your confidence in God at the same time. Tolle lege!