First Reading
NUMBERS 24:2-7, 15-17

2And Balaam lifted up his eyes, and saw Israel encamping tribe by tribe. And the Spirit of God came upon him, 3and he took up his discourse, and said, "The oracle of Balaam the son of Be'or, the oracle of the man whose eye is opened, 4the oracle of him who hears the words of God, who sees the vision of the Almighty, falling down, but having his eyes uncovered: 5how fair are your tents, O Jacob, your encampments, O Israel! 6Like valleys that stretch afar, like gardens beside a river, like aloes that the LORD has planted, like cedar trees beside the waters. 7Water shall flow from his buckets, and his seed shall be in many waters, his king shall be higher than Agag, and his kingdom shall be exalted. 15And he took up his discourse, and said, "The oracle of Balaam the son of Be'or, the oracle of the man whose eye is opened, 16the oracle of him who hears the words of God, and knows the knowledge of the Most High, who sees the vision of the Almighty, falling down, but having his eyes uncovered: 17I see him, but not now; I behold him, but not nigh: a star shall come forth out of Jacob, and a scepter shall rise out of Israel; it shall crush the forehead of Moab, and break down all the sons of Sheth.

Responsorial Psalm
PSALMS 25:4-9

4Make me to know thy ways, O LORD; teach me thy paths. 5Lead me in thy truth, and teach me, for thou art the God of my salvation; for thee I wait all the day long. 6Be mindful of thy mercy, O LORD, and of thy steadfast love, for they have been from of old. 7Remember not the sins of my youth, or my transgressions; according to thy steadfast love remember me, for thy goodness' sake, O LORD! 8Good and upright is the LORD; therefore he instructs sinners in the way. 9He leads the humble in what is right, and teaches the humble his way.

Gospel
MATTHEW 21:23-27

23And when he entered the temple, the chief priests and the elders of the people came up to him as he was teaching, and said, "By what authority are you doing these things, and who gave you this authority?" 24Jesus answered them, "I also will ask you a question; and if you tell me the answer, then I also will tell you by what authority I do these things. 25The baptism of John, whence was it? From heaven or from men?" And they argued with one another, "If we say, `From heaven,' he will say to us, `Why then did you not believe him?' 26But if we say, `From men,' we are afraid of the multitude; for all hold that John was a prophet." 27So they answered Jesus, "We do not know." And he said to them, "Neither will I tell you by what authority I do these things.