Charles H. Spurgeon on Psalms 119:27

Make me to understand the way of thy precepts. Give me a deep insight into the practical meaning of thy word; let me get a clear idea of the tone and tenor of thy law. Blind obedience has but small beauty; God would have us follow him with our eyes open. To obey the letter of the word is all that the ignorant can hope for; if we wish to keep God's precepts in their spirit we must come to an understanding of them, and that can be gained nowhere but at the Lord's hands. Our understanding needs enlightenment and direction: he who made our understanding must also make us understand. The last sentence was, "teach me thy statutes, "and the words, "make me to understand, "are an instructive enlargement and exposition of that sentence: we need to be so taught that we understand what we learn. It is to be noted that the Psalmist is not anxious to understand the prophecies, but the precepts, and he is not concerned about the subtleties of the law, but the commonplaces and everyday rules of it, which are described as "the way of thy precepts."

So shall I talk of thy wondrous works. It is ill talking of what we do not understand. We must be taught of God till we understand, and then we may hope to communicate our knowledge to others with a hope of profiting them. Talk without intelligence is mere talk, and idle talk; but the words of the instructed are as pearls which adorn the ears of them that hear. When our heart has been opened to understand, our lips should be opened to impart knowledge; and we may hope to be taught ourselves when we feel in our hearts a willingness to teach the way of the Lord to those among whom we dwell.

Thy wondrous works. Remark that the clearest understanding does not cause us to cease from wondering at the ways and works of God. The fact is that the more we know of God's doings the more we admire them, and the more ready we are to speak upon them. Half the wonder in the world is born of ignorance, but holy wonder is the child of understanding. When a man understands the way of the divine precepts he never talks of his own works, and as the tongue must have some theme to speak upon, he begins to extol the works of the all perfect Lord.

Some in this place read "meditate" or "muse" instead of "talk"; it is singular that the words should be so near of kin, and yet it is right that they should be, for none but foolish people will talk without thinking. If we read the passage in this sense, we take it to mean that in proportion as David understood the word of God he would meditate upon it more and more. It is usually so; the thoughtless care not to know the inner meaning of the Scriptures, while those who know them best are the very men who strive after a greater familiarity with them, and therefore give themselves up to musing upon them.

Observe the third verse of the last eight (19), and see how the sense is akin to this. There he was a stranger in the earth, and here he prays to know his way; there, too, he prayed that the word might not be hid from himself, and here he promises that he will not hide it from others.