Charles H. Spurgeon on Psalms 119:99

I have more understanding than all my teachers. That which the Lord had taught him had been useful in the camp, and now he finds it equally valuable in the schools. Our teachers are not always to be trusted; in fact, we may not follow any of them implicitly, for God holds us to account for our personal judgments. It behooves us then to follow closely the chart of the Word of God, that we may be able to save the vessel when even the pilot errs. If our teachers should be in all things sound and safe, they will be right glad for us to excel them, and they will ever be ready to own that the teaching of the Lord is better than any teaching which they can give us. Disciples of Christ who sit at his feet are often better skilled in divine things than doctors of divinity.

For thy testimonies are my meditation. This is the best mode of acquiring understanding. We may hear the wisest teachers and remain fools, but if we meditate upon the sacred word we must become wise. There is more wisdom in the testimonies of the Lord than in all the teachings of men if they were all gathered into one vast library. The one book outweighs all the rest.

David does not hesitate to speak the truth in this place concerning himself, for he is quite innocent of self consciousness. In speaking of his understanding he means to extol the law and the Lord, and not himself. There is not a grain of boasting in these bold expressions, but only a sincere childlike desire to set forth the excellence of the Lord's word. He who knows the truths taught in the Bible will be guilty of no egotism if he believes himself to be possessed of more important truth than all the agnostic professors buried and unburied.