On Psalm 136 (135) "God Is; God Is Good, and His Mercy Is Eternal" VATICAN CITY, OCT. 19, 2011 (Zenit.org).- Here is a translation of the Italian-language catechesis Benedict XVI gave today during the general audience held in St. Peter's Square. The Pope today continued his catecheses on prayer with a reflection on Psalm 136 (135). * * * Dear brothers and sisters, Today I would like to meditate with you on a psalm that summarizes the whole of salvation history as recounted for us in the Old Testament. It is a great hymn of praise that extols the Lord...