What Philistine did David entrust
with the Ark of the Covenant when
he was taking it to Jerusalem ?

Uzzah and Ahio, the sons of Abinadab

Nope ! Uzzah was the one "smote" for
touching the ark ! It was at that
point that David left it with someone !
That is the someone I seek !

1Chronicles 13:13 So David brought not the ark home to himself to the city of David, but carried it aside into the house of Obed-edom the Gittite.

My answer would be Obed-edom

That's the guy !

Thanks for the answers
Sherasi and Shelster !