'Investigate' in the Bible

Saul said, “All you leaders of the troops, come here. Let us investigate how this sin has occurred today.

Go and check again. Investigate and watch carefully where he goes and who has seen him there; they tell me he is extremely cunning.

Investigate and find out all the hiding places there where he hides, and return to me with reliable information. Then I'll go down with you, and if he's in the land, I'll search him out among all the thousands of Judah."