Charles H. Spurgeon on Psalms 119:7

When, I shall have learned. By learning he means his attaining not only to the knowledge of the word, but the practice of it. It is not a speculative light, or a bare notion of things: "Every man therefore that hath heard, and hath learned of the Father, cometh unto me" (John 6:45). It is such a learning as the effect will necessarily follow, such a light and illumination as doth convert the soul, and frame our hearts and ways according to the will of God. For otherwise, if we get understanding of the word, nay, if we get it imprinted in our memories, it will do us no good without practice. The best of God's servants are but scholars and students in the knowledge and obedience of his word. For saith David, "When I shall have learned." The professors of the Christian religion were primitively called disciples or learners: to plhyov twn mayhtwn; "the multitude of the disciples" (Acts 6:2.) Thomas Manton.