2 Sam 8 & 9 - David see's that the necessities of life are provided for Mephibosheth. Why? 2023

2 Sam 9:3
And the king said, "Is there not yet anyone of the house of Saul to whom I may show the kindness of God?" And Ziba said to the king, "There is still a son of Jonathan who is crippled in both feet."

Mephibosheth was still alive. He is the one who was crippled trying to flee form the Philistines when his father and grandfather were killed.

2 Sam 4:4

2 Sam 9:4
So the king said to him, "Where is he?" And Ziba said to the king, "Behold, he is in the house of Machir the son of Ammiel in Lo-debar."

Machir supported Mephibosheth and later helped David.

2 Sam 17:27-29
Now when David had come to Mahanaim, Shobi the son of Nahash from Rabbah of the sons of Ammon, Machir the son of Ammiel from Lo-debar, and Barzillai the Gileadite from Rogelim, 28brought beds, basins, pottery, wheat, barley, flour, parched grain, beans, lentils, parched seeds, 29honey, curds, sheep, and cheese of the herd, for David and for the people who were with him, to eat; for they said, “The people are hungry and weary and thirsty in the wilderness.”

2 Sam 9:5
Then King David sent and brought him from the house of Machir the son of Ammiel, from Lo-debar.

2 Sam 9:6
And Mephibosheth, the son of Jonathan the son of Saul, came to David and fell on his face and prostrated himself. And David said, "Mephibosheth." And he said, "Here is your servant!"
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2 Sam 9:7
And David said to him, "Do not fear, for I will surely show kindness to you for the sake of your father Jonathan, and will restore to you all the land of your grandfather Saul; and you shall eat at my table regularly."

Mephibosheth did not know what to make of David, but David quickly made his intentions known.

2 Sam 9:8
Again he prostrated himself and said, "What is your servant, that you should regard a dead dog like me?"

2 Sam 9:9
Then the king called Saul's servant Ziba, and said to him, "All that belonged to Saul and to all his house I have given to your master's
grandson.

2 Sam 9:10
"And you and your sons and your servants shall cultivate the land for him, and you shall bring in the produce so that your master's grandson
may have food; nevertheless Mephibosheth your master's grandson shall eat at my table regularly." Now Ziba had fifteen sons and twenty servants.

Mephibosheth considered himself a contemptible dog. But David saw to it that the necessities of life were provided for him.