Psalms 50: 1 - 2, 5 - 6, 14 - 15
1 The Mighty One, God the LORD, speaks and summons the earth from the rising of the sun to its setting.
2 Out of Zion, the perfection of beauty, God shines forth.
5 "Gather to me my faithful ones, who made a covenant with me by sacrifice!"
6 The heavens declare his righteousness, for God himself is judge! [Selah]
14 Offer to God a sacrifice of thanksgiving, and pay your vows to the Most High;
15 and call upon me in the day of trouble; I will deliver you, and you shall glorify me."

EWTN