The noted Messianic Jewish scholar Michael Brown has two new essays on his website.
The first explains why Messianic Judaism must retain the belief that Jewish people following Rabbinic Judaism do need to let Yeshua have authority over their lives (switching from giving Rabbinic tradition and leaders authority over their lives). Cooperating with people in Rabbinic Jewish communities is a worthwhile goal only if we may retain allowing our own lives to be Yeshua's light shining into the darkness of authoritative tradtions of men.
The second essay is a nice introduction to Jewish apologetics.
