Have inquired and searched diligently (ἐξεζήτησαν - ἐξηρεύνησαν)
Rev., properly, renders the aorists sought and searched diligently. The ἐξ in composition has the force of out, searched out, and is rendered by diligently.
Sought
Used of Esau's seeking carefully for a place of repentance, in Heb 12:17.
Searched
Used nowhere else in the New Testament. Compare Septuagint, 1 Samuel 23:23, of Saul's searching out David.