First Reading: 1 Samuel 3:1-20

At a time when visions are rare and unexpected, the Lord comes to Samuel and calls him to speak the divine word. Though just a boy, Samuel responds to God obediently, as Eli the priest has taught him to respond. This marks the beginning of Samuel’s prophetic ministry.

¹Now the boy Samuel was ministering to the Lord under Eli. The word of the Lord was rare in those days; visions were not widespread.
²At that time Eli, whose eyesight had begun to grow dim so that he could not see, was lying down in his room; ³the lamp of God had not yet gone out, and Samuel was lying down in the temple of the Lord, where the ark of God was. ⁴Then the Lord called, “Samuel! Samuel!” and he said, “Here I am!” ⁵and ran to Eli, and said, “Here I am, for you called me.” But he said, “I did not call; lie down again.” So he went and lay down. ⁶The Lord called again, “Samuel!” Samuel got up and went to Eli, and said, “Here I am, for you called me.” But he said, “I did not call, my son; lie down again.” ⁷Now Samuel did not yet know the Lord, and the word of the Lord had not yet been revealed to him. ⁸The Lord called Samuel again, a third time. And he got up and went to Eli, and said, “Here I am, for you called me.” Then Eli perceived that the Lord was calling the boy. ⁹Therefore Eli said to Samuel, “Go, lie down; and if he calls you, you shall say, ‘Speak, Lord, for your servant is listening.’ ” So Samuel went and lay down in his place.
¹⁰Now the Lord came and stood there, calling as before, “Samuel! Samuel!” And Samuel said, “Speak, for your servant is listening.” ¹¹Then the Lord said to Samuel, “See, I am about to do something in Israel that will make both ears of anyone who hears of it tingle. ¹²On that day I will fulfill against Eli all that I have spoken concerning his house, from beginning to end. ¹³For I have told him that I am about to punish his house forever, for the iniquity that he knew, because his sons were blaspheming God, and he did not restrain them. ¹⁴Therefore I swear to the house of Eli that the iniquity of Eli’s house shall not be expiated by sacrifice or offering forever.”
¹⁵Samuel lay there until morning; then he opened the doors of the house of the Lord. Samuel was afraid to tell the vision to Eli. ¹⁶But Eli called Samuel and said, “Samuel, my son.” He said, “Here I am.” ¹⁷Eli said, “What was it that he told you? Do not hide it from me. May God do so to you and more also, if you hide anything from me of all that he told you.” ¹⁸So Samuel told him everything and hid nothing from him. Then he said, “It is the Lord; let him do what seems good to him.”
¹⁹As Samuel grew up, the Lord was with him and let none of his words fall to the ground. ²⁰And all Israel from Dan to Beer-sheba knew that Samuel was a trustworthy prophet of the Lord.

Psalm: Psalm 139:1-6, 13-18

¹Lord, you have | searched me out;
  O Lord, you | have known me.
²You know my sitting down and my | rising up;
you discern my thoughts | from afar.
³You trace my journeys and my | resting-places
  and are acquainted with | all my ways.
⁴Indeed, there is not a word | on my lips,
but you, O Lord, know it | altogether. 
⁵You encompass me, behind | and before,
  and lay your | hand upon me.
⁶Such knowledge is too wonder- | ful for me;
it is so high that I cannot at- | tain to it.
¹³For you yourself created my | inmost parts;
  you knit me together in my | mother’s womb.
¹⁴I will thank you because I am mar- | velously made;
your works are wonderful, and I | know it well. 
¹⁵My body was not hid- | den from you,
  while I was being made in secret and woven in the depths | of the earth.
¹⁶Your eyes beheld my limbs, yet unfinished in the womb; all of them were written | in your book;
my days were fashioned before they | came to be.
¹⁷How deep I find your | thoughts, O God!
  How great is the | sum of them!
¹⁸If I were to count them, they would be more in number | than the sand;
  to count them all, my life span would need to | be like yours. 

Second Reading: 1 Corinthians 6:12-20

Paul helps the Corinthians understand that God has claimed the entirety of their lives through the death of Christ. Hence Christian relationships and conduct, including areas of human sexuality, are to reflect the reality that we belong to Christ and that the Holy Spirit lives within us.

¹²“All things are lawful for me,” but not all things are beneficial. “All things are lawful for me,” but I will not be dominated by anything. ¹³“Food is meant for the stomach and the stomach for food,” and God will destroy both one and the other. The body is meant not for fornication but for the Lord, and the Lord for the body. ¹⁴And God raised the Lord and will also raise us by his power. ¹⁵Do you not know that your bodies are members of Christ? Should I therefore take the members of Christ and make them members of a prostitute? Never! ¹⁶Do you not know that whoever is united to a prostitute becomes one body with her? For it is said, “The two shall be one flesh.” ¹⁷But anyone united to the Lord becomes one spirit with him. ¹⁸Shun fornication! Every sin that a person commits is outside the body; but the fornicator sins against the body itself. ¹⁹Or do you not know that your body is a temple of the Holy Spirit within you, which you have from God, and that you are not your own? ²⁰For you were bought with a price; therefore glorify God in your body.

Gospel: John 1:43-51

In John’s gospel, Jesus’ ministry begins with the call of disciples, who then bring others to Jesus. Philip’s friend Nathanael moves from skepticism to faith when he accepts the invitation to “Come and see.”

⁴³The next day Jesus decided to go to Galilee. He found Philip and said to him, “Follow me.” ⁴⁴Now Philip was from Bethsaida, the city of Andrew and Peter. ⁴⁵Philip found Nathanael and said to him, “We have found him about whom Moses in the law and also the prophets wrote, Jesus son of Joseph from Nazareth.” ⁴⁶Nathanael said to him, “Can anything good come out of Nazareth?” Philip said to him, “Come and see.” ⁴⁷When Jesus saw Nathanael coming toward him, he said of him, “Here is truly an Israelite in whom there is no deceit!” ⁴⁸Nathanael asked him, “Where did you get to know me?” Jesus answered, “I saw you under the fig tree before Philip called you.” ⁴⁹Nathanael replied, “Rabbi, you are the Son of God! You are the King of Israel!” ⁵⁰Jesus answered, “Do you believe because I told you that I saw you under the fig tree? You will see greater things than these.” ⁵¹And he said to him, “Very truly, I tell you, you will see heaven opened and the angels of God ascending and descending upon the Son of Man.”