Your instructions are a doorway through which light shines. They give insight to the untrained.
[Ps 119:130 NET]
The word “simple” means literally something which is not folded or twisted together. But owing to the treacherous and desperately deceitful heart of man, all, without exception, in a state of nature are the reverse of this. All their plots and contrivances for worldly profit or fleshly pleasure are tangled and complicated; and they are continually twisting together some thread or other of carnal policy.
But when God the Holy Spirit begins the work of grace upon the souls of the elect, he proceeds (if I may use the expression) to untwist them. He takes hold of that rope which Satan and their own hearts have been twisting together for years, and he untwists it throughout its whole length, so as to leave the strands not intertwined as before, but sifted, separated, and isolated from each other. The light that shines into the soul out of the fullness of Jesus discovers to a man the tortuousness, the crookedness, the complicated deceit and hypocrisy of which he is guilty. A man then is made “simple,” when the folds and rumples of his heart are shaken out, and he is brought to see and feel that God looks into him; that his eye penetrates into every recess of his bosom; and that there is not a thought in his heart, nor “a word in his tongue, but the Lord knows it altogether” (Psalm 139:4).
This character is aptly represented by Nathaniel. He had gone through this untwisting work in his soul. He had been under the fig-tree, and while kneeling and praying there, the eye of God looked into him, and just as a flash of lightning runs, in a moment, through a coil of wire, so, when the eye of God looked into Nathaniel’s soul, that instantaneous flash unraveled and untwisted the devices of his heart, and made him a simple man before him—“an Israelite indeed, in whom there was no deceit” (John 1:47).