Let us boast of nothing but the cross of Christ (2). Through it his grace and power are made known to his servants (1). Tremendous deeds shall be performed in his name (Ps): the reign of God is proclaimed, peace is given as gift, and forces of sin are overcome (3). Is 66:10-14c; Ps 66:1-7, 16, 20; Gal 6:14-18; Lk 10:1-12, 17-20