Sha'ul was already chosen. Why were they asking about others?
Metzudas David: After seeking [Sha'ul and not finding him], they asked if anyone else had come to here, other than those found here and known. 1
I do not understand why this was relevant. Perhaps this is why Mahari Kara left this difficult. (PF)
What is "El ha'Kelim"?
Rashi: It is the house where they put the Kelim of the people who came [to Mitzpah]; he fled grandeur. Radak - "El ha'Kelim" is like ba'Kelim, just like "v'El ha'Aron Titen Es ha'Edus" (Shemos 25:21).
Rashi citing Tanchuma (Vayikra 4): It is the Urim v'Tumim. He said, perhaps I am not proper for grandeur, until they asked the Urim v'Tumim, and it answered that he is worthy.
Mahari Kara: He is with the youths guarding their masters' Kelim.
