I currently am reading "Rabbi & Redeemer" by David Mishkin (see www.mtolivepress.com to order). This walk through the book of John gives good insight on the Jewishness of the scriptures and explains the cultural and historical context of the writings. If als0 does an excellent job of helping us see Yeshua as He claimed to be, the Son of G-d.
One key point made is the difference between Grace & Mercy, I'd like to share this here:
Grace is getting what we do not deserve, namely eternal life, the ability to live according to Torah, and have G-d's Spirit dwelling inside of each of us granting the strength to overcome.
Mercy is not getting what we do deserve, punishment and eternal seperation from G-d.
Thus G-d, through mercy, forgives our sins, and through Grace gives us eternal life and the ability to walk according to His will.
What a beautiful concept, not only forgiveness, but tha ability to walk as "Children of the King". This is what was meant when G-d said He would give us a new heart, and write His Torah on our heart!