Charles H. Spurgeon on Psalms 71:17

Thou hast taught me from my youth. If you ask me what were the ways by which David was taught, I might ask you what they were not... God taught him by his shepherd's crook; and by the rod and sceptre of a king he taught him. He taught him by the shouts of the multitude —"Saul hath slain his thousands and David his ten thousands; "and he taught him just as much, if not more, by the contempt he met in the court of the Philistines. He taught him by the arrows of Jonathan, levelled in friendship; and he taught him by the javelin of Saul levelled at his life. He taught him by the faithlessness of Abiathar, and the faithlessness of even his faithful Joab; and he taught him by the faithfulness of Abishai, and the faithfulness of Mephibosheth; and, let me add too, by the rebellion of Absalom, and the selfishness of Adonijah; they were all means, by which the Lord taught this his servant. And be assured, you that are under his teaching, there is nothing in your lives, but he can teach you by it: by comforts and crosses, by your wounds and your healings, by that which he gives and by what he takes away. He unteaches his child, that he may teach him; shows him his folly, that he may make him wise; strips him of his vain confidence, that he may give him strength; makes him know that he is nothing, that he may show him that he has all in the Lord —in Jesus his Beloved one. James Harrington Evans.