Esdra 7:10

For Ezra had prepared his heart to seek the law of the LORD, and to do [it], and to teach in Israel statutes and judgments.

Ver. 10. For Ezra had prepared his heart] Which, without due preparation, would not have been drawn to any good. See 1Sa 7:3 Job 11:13 Amos 4:12. An instrument must be tuned ere it can be played upon; sour wines need good sweetening.

To seek the law of the Lord] To dive into the very bosom and bottom of it. Qui nucleum vult, nucem frangat. The Rabbis have a saying, that there is a mountain of sense hanging upon every tittle of God's law.

And to do it] His knowledge and practice ran parallel, and mutually transfused warmth into one another. He was not of those orators blamed by Diogenes, for that they studied bene dicere, non bene facere, to speak commendably, but not to live accordingly. He knew well that his forefathers (the high priests) had pomegranates for savour as well as bells for sound.

And to teach in Israel] He knew the truth of that Hebrew proverb, Lilmod Lelammed, Men must therefore learn, that they may teach others, and not bury their talents, lest the canker of their great skill prove a swift witness one day against them.