'Thoroughly' in the Bible

I took the sinful calf you had made, burned it up, and crushed it, thoroughly grinding it to powder as fine as dust. Then I threw it into the stream that came down from the mountain.

you are to inquire, investigate, and interrogate thoroughly. If the report turns out to be true that this detestable thing has happened among you,

and if you are told or hear about it, you must investigate it thoroughly. If the report turns out to be true that this detestable thing has happened in Israel,