Psalm 51:12-17 and 2 Samuel 12:1-7a, 10-17

Psalm 51:12-17
12 Create a clean heart in me, O God. And renew an upright spirit within my inmost being.
13 Do not cast me away from your face; and do not take your Holy Spirit from me.
14 Restore to me the joy of your salvation, and confirm me with an unsurpassed spirit.
15 I will teach the unjust your ways, and the impious will be converted to you.
16 Free me from blood, O God, the God of my salvation, and my tongue will extol your justice.
17 O Lord, you will open my lips, and my mouth will announce your praise.
2 Samuel 12:1-7a, 10-17
1 Then the Lord sent Nathan to David. And when he had come to him, he said to him: "Two men were in one city: one wealthy, and the other poor.
2 The wealthy man had very many sheep and oxen.
3 But the poor man had nothing at all, except one little sheep, which he had bought and nourished. And she had grown up before him, together with his children, eating from his bread, and drinking from his cup, and sleeping in his bosom. And she was like a daughter to him.
4 But when a certain traveler had come to the wealthy man, neglecting to take from his own sheep and oxen, so that he might present a feast for that traveler, who had come to him, he took the sheep of the poor man, and he prepared a meal for the man who had come to him."
5 Then David's indignation was enraged exceedingly against that man, and he said to Nathan: "As the Lord lives, the man who has done this is a son of death.
6 He shall restore the sheep fourfold, because he did this word, and he did not take pity."
7 But Nathan said to David: "You are that man.
10 For this reason, the sword shall not withdraw from your house, even perpetually, because you have despised me, and you have taken the wife of Uriah the Hittite, so that she may be your wife.'
11 And so, thus says the Lord: 'Behold, I will raise up over you an evil from your own house. And I will take your wives away before your eyes, and I will give them to your neighbor. And he will sleep with your wives in the sight of this sun.
12 For you acted secretly. But I will do this word in the sight of all of Israel, and in the sight of the sun.' "
13 And David said to Nathan, "I have sinned against the Lord." And Nathan said to David: "The Lord has also taken away your sin. You shall not die.
14 Yet truly, because you have given occasion to the enemies of the Lord to blaspheme, because of this word, the son who was born to you: dying he shall die."
15 And Nathan returned to his own house. And the Lord struck the little one, whom the wife of Uriah had borne to David, and he was despaired of.
16 And David begged the Lord on behalf of the little one. And David fasted strictly, and entering alone, he lay upon the ground.
17 Then the elders of his house came, urging him to rise up from the ground. And he was not willing, nor would he eat a meal with them.