'Skillful' in the Bible

According to the [remarkable] grace of God which was given to me [to prepare me for my task], like a skillful master builder I laid a foundation, and now another is building on it. But each one must be careful how he builds on it,

Therefore the overseer must be irreproachable, the husband of one wife, temperate, self-controlled, respectable, hospitable, skillful in teaching,

And the slave of the Lord must not quarrel, but be kind toward everyone, skillful in teaching, tolerant,