'Expert' in the Bible

When the boys grew up, Esau became an expert hunter, an outdoorsman, but Jacob was a quiet man who stayed at home.

Some Gadites defected to David at his stronghold in the desert. They were fighting men, trained for battle, expert with shield and spear. Their faces were like the faces of lions, and they were as swift as gazelles on the mountains.

This is the text of the letter King Artaxerxes gave to Ezra the priest and scribe, an expert in matters of the Lord’s commands and statutes for Israel:

Artaxerxes, king of kings, to Ezra the priest, an expert in the law of the God of heaven: Greetings.

I, King Artaxerxes, issue a decree to all the treasurers in the region west of the Euphrates River: Whatever Ezra the priest, an expert in the law of the God of heaven, asks of you must be provided promptly,

And one of them, an expert in the law, asked a question to test Him:

Just then an expert in the law stood up to test Him, saying, “Teacher, what must I do to inherit eternal life?”

especially since you are an expert in all the Jewish customs and controversies. Therefore I beg you to listen to me patiently.