So he went in and shut the door behind the two of them and prayed to the LORD.
We may well suppose that, after the birth of this son, the prophet was doubly welcome to the good Shunammite. He had thought himself indebted to her, but henceforth, as long as she lives, she will think herself in his debt, and that she can never do too much for him.
Commenting on 2 Kings 4:18-37
He went in therefore, and shut the door upon them twain,.... Himself and the dead child; that nobody might come in and interrupt him in his prayers for the restoration of it to life, nor see the motions and gestures he used, and the postures he put himself in: and prayed unto the Lord; that he would restore the child to life.
Prayed unto the Lord - He had no power of his own by which he could restore the child.