Some background: Rachel Held Evans has made a career out
of undermining fidelity to the
teachings of Scripture by ridiculing simplistic or non-existent
notions of biblical interpretation (hermeneutics), while practicing a flawed hermeneutic
of her own that often seems to be little more than an extension
of her own ideology.
The setting itself gives the tone for this authoritative
teaching: while Luke's account
of the sermon takes place on the plain, Matthew has Jesus up a mountain, thus evoking the
biblical notion of mountain as a place
of divine revelation, and Mount Sinai in particular as the place where God's will for his people Israel was revealed.