7:15 Beware of false prophets. This is the first use of the word “beware” in the New Testament, and so warrants close attention. There have always been men (more so today than ever) who claim to be—and often appear to be—true prophets (or teachers or pastors or counselors) with marvelous new spiritual messages. But beware! They must always be tested by their fidelity to all the Holy Scriptures (Isaiah 8:20). Also see note on Revelation 22:18.
7:15 ravening. Searching for prey, like a raven. Note especially II Corinthians 11:13-15; II Peter 2:1-3.