Reading 1, First Kings 19:19-21

19 Leaving there, he came on Elisha son of Shaphat as he was ploughing behind twelve yoke of oxen, he himself being with the twelfth. Elijah passed near to him and threw his cloak over him.

20 Elisha left his oxen and ran after Elijah. 'Let me kiss my father and mother, then I will follow you,' he said. Elijah answered, 'Go, go back; for have I done anything to you?'

21 Elisha turned away, took a yoke of oxen and slaughtered them. He used the oxen's tackle for cooking the meat, which he gave the people to eat. He then rose and, following Elijah, became his servant.

Responsorial Psalm, Psalms 16:1-2, 5, 7-8, 9-10

1 [In a quiet voice Of David] Protect me, O God, in you is my refuge.

2 To Yahweh I say, 'You are my Lord, my happiness is in none

5 My birthright, my cup is Yahweh; you, you alone, hold my lot secure.

7 I bless Yahweh who is my counsellor, even at night my heart instructs me.

8 I keep Yahweh before me always, for with him at my right hand, nothing can shake me.

9 So my heart rejoices, my soul delights, my body too will rest secure,

10 for you will not abandon me to Sheol, you cannot allow your faithful servant to see the abyss.
Gospel, Matthew 5:33-37

33 'Again, you have heard how it was said to our ancestors, You must not break your oath, but must fulfil your oaths to the Lord.

34 But I say this to you, do not swear at all, either by heaven, since that is God's throne;

35 or by earth, since that is his footstool; or by Jerusalem, since that is the city of the great King.

36 Do not swear by your own head either, since you cannot turn a single hair white or black.

37 All you need say is "Yes" if you mean yes, "No" if you mean no; anything more than this comes from the Evil One.