Psalm 40:5-10 and Judges 11:29-39a

Psalm 40:5-10
5 Blessed is the man whose hope is in the name of the Lord, and who has no respect for vanities and absurd falsehoods.
6 You have accomplished your many wonders, O Lord my God, and there is no one similar to you in your thoughts. I have announced and I have spoken: they are multiplied beyond number.
7 Sacrifice and oblation, you did not want. But you have perfected ears for me. Holocaust and sin offering, you did not require.
8 Then I said, "Behold, I draw near." At the head of the book, it has been written of me:
9 that I should do your will. My God, I have willed it. And your law is in the midst of my heart.
10 I have announced your justice in a great Church: behold, I will not restrain my lips. O Lord, you have known it.
Judges 11:29-39a
29 Therefore, the Spirit of the Lord rested upon Jephthah, and circling around Gilead, and Manasseh, and also Mizpah of Gilead, and crossing from there to the sons of Ammon,
30 he made a vow to the Lord, saying, "If you will deliver the sons of Ammon into my hands,
31 whoever will be the first to depart from the doors of my house to meet me, when I return in peace from the sons of Ammon, the same will I offer as a holocaust to the Lord."
32 And Jephthah crossed to the sons of Ammon, so that he might fight against them. And the Lord delivered them into his hands.
33 And he struck them down from Aroer, as far as the entrance to Minnith, twenty cities, and as far as Abel, which is covered with vineyards, in an exceedingly great slaughter. And the sons of Ammon were humbled by the sons of Israel.
34 But when Jephthah returned to Mizpah, to his own house, his only daughter met him with timbrels and dances. For he had no other children.
35 And upon seeing her, he tore his garments, and he said: "Alas, my daughter! You have cheated me, and you yourself have been cheated. For I opened my mouth to the Lord, and I can do nothing else."
36 And she answered him, "My father, if you have opened your mouth to the Lord, do to me whatever you have promised, since victory has been granted to you, as well as vengeance against your enemies."
37 And she said to her father: "Grant to me this one thing, which I request. Permit me, that I may wander the hillsides for two months, and that I may mourn my virginity with my companions."
38 And he answered her, "Go." And he released her for two months. And when she had departed with her friends and companions, she wept over her virginity in the hillsides.
39 And when the two months expired, she returned to her father, and he did to her just as he had vowed, though she knew no man.