"Behold I come that I should do Thy Will: O my God, I have
desired it, and Thy law in the midst of my heart."
(Ps. XXXIX. 8, 9).
_1st. Prelude._ Vas spirituale. Vas insigne devotionis.
_2nd. Prelude._ Grace to "pray without ceasing." (1 Thess. V. 17).