Deuteronomy 18:15–20

18  15 “The Lord your God will raise up for you a prophet like me from among your own people; you shall heed such a prophet. 16 This is what you requested of the Lord your God at Horeb on the day of the assembly when you said, ‘Let me not hear again the voice of the Lord my God or see this great fire any more, lest I die.’ 17 Then the Lord replied to me, ‘They are right in what they have said. 18 I will raise up for them a prophet like you from among their own people; I will put my words in the mouth of the prophet, who shall speak to them everything that I command. 19 Anyone who does not heed the words that the prophet shall speak in my name, I myself will hold accountable. 20 But any prophet who presumes to speak in my name a word that I have not commanded the prophet to speak or who speaks in the name of other gods, that prophet shall die.’

Psalm 111

111  1 Praise the Lord!
I will give thanks to the Lord with my whole heart,
in the company of the upright, in the congregation.
2 Great are the works of the Lord,
studied by all who delight in them.
3 Full of honor and majesty is his work,
and his righteousness endures forever.
4 He has gained renown by his wonderful deeds;
the Lord is gracious and merciful.
5 He provides food for those who fear him;
he is ever mindful of his covenant.
6 He has shown his people the power of his works,
in giving them the heritage of the nations.
7 The works of his hands are faithful and just;
all his precepts are trustworthy.
8 They are established forever and ever,
to be performed with faithfulness and uprightness.
9 He sent redemption to his people;
he has commanded his covenant forever.
Holy and awesome is his name.
10 The fear of the Lord is the beginning of wisdom;
all those who practice it have a good understanding.
His praise endures forever.

Mark 1:21–28

1  21 They went to Capernaum, and when the Sabbath came, he entered the synagogue and taught. 22 They were astounded at his teaching, for he taught them as one having authority and not as the scribes. 23 Just then there was in their synagogue a man with an unclean spirit, 24 and he cried out, “What have you to do with us, Jesus of Nazareth? Have you come to destroy us? I know who you are, the Holy One of God.” 25 But Jesus rebuked him, saying, “Be quiet and come out of him!” 26 And the unclean spirit, convulsing him and crying with a loud voice, came out of him. 27 They were all amazed, and they kept on asking one another, “What is this? A new teaching—with authority! He commands even the unclean spirits, and they obey him.” 28 At once his fame began to spread throughout the surrounding region of Galilee.