Thou believest that there is one God;— All that is said from this place to James 2:23 is by way of answer to the inquiry made James 2:18 namely, which was the way to manifest that a man had true faith;—by words and actions, and every other mode of evidencing holy tempers and dispositions.
Related Commentaries of James 2:19
James 2:19
19 Thou believest that there is one God; thou doest well: the devils also believe, and tremble.