The Peace of the Advocate

We have an Advocate with the Father...

The Gospel of John often uses the word Paraclete (from the Greek) or Advocate (from the Latin) to describe one "called to our side," or "called to our aid," to console and comfort us, and most often, this word is associated with the Holy Spirit.  But in today's second reading (1 John 2: 1-5a), we are told that Jesus is also our Advocate, present at our side in the Peace he offers to his disciples in today's Gospel (Luke 24: 35-48) and to us today, whenever we call upon him.  

From the Online Etymological Dictionary:

peace (n.) 

mid-12c., "freedom from civil disorder," from Anglo-Norm. pes, from O.Fr. pais (11c., Mod.Fr. paix), from L. pacem (nom. pax) "treaty of peace, tranquility, absence of war," from PIE *pak- "fasten," related to pacisci "to covenant or agree" (see pact). Modern spelling is 1500s, reflecting vowel shift.  Sense in peace of mind is from c.1200. Used in various greetings from c.1300, from Biblical L. pax, Gk. eirene, which were used by translators to render Heb.shalom, properly "safety, welfare, prosperity." 

Paraclete 

mid-15c., Paraclit, from Gk. parakletos “advocate, intercessor,” from parakalein “to call to one’s aid,” in later use “to comfort, console.”

advocate (n.) 

from L. advocatus "one called to aid; a pleader, advocate," originally pp. of advocare "to call" (as witness or advisor) from ad- "to" (see ad-) + vocare "to call," related to vocem (see voice). The verb is first attested 1640s, from the noun. Related: Advocated; advocating.