'Well versed' in the Bible

Meanwhile there had come to Ephesus an Alexandrian Jew, named Apollos, an eloquent man, who was well-versed in the Scriptures.

Especially as you are so well-versed in all the customs and questions of the Jewish world. I beg you therefore to give me a patient hearing.

Every one has heard of your ready obedience. It is true that I am very happy about you, but I want you to be well versed in all that is good, and innocent of all that is bad.