1)
How did the bones of Ish ha'Elokim save the bones of the false Navi?
1.
Radak: They were buried together in one grave. (Yoshiyah did not open the grave to take the bones of Ish ha'Elokim, so also the false Navi's bones remained there.) false Navi lived in Beis Kel, but at that time he came from Shomron. Ralbag (Melachim I, 13:21) - the false Navi asked to be buried there, for he knew that Yoshiyah will not burn the bones of Ish ha'Elokim.
2.
Metzudas David (23:18): The elder was buried next to Ish ha'Elokim. Yoshiyah feared to take the elder's bones, lest he move the bones of Ish ha'Elokim.
