This verse closes the father's lecture on guarding the heart, Proverbs 4:20–27, and the chapter.
Quick answer
The lecture's last word to the feet: no swerving, right or left, and any foot that has strayed toward evil gets removed, promptly.
Read the whole unit
The father's lecture on guarding the heart is a body in order. It begins at the ear (v. 20): give attention, incline the ear to a father's words. It moves to the eyes and the heart (v. 21): keep the words in sight and store them at the center. It pauses to state what the words are worth (v. 22): life to those who find them, health to all their flesh. Then it arrives at the summit of the chapter and one of the summits of the book (v. 23): keep your heart with all diligence, for out of it spring the issues of life. In Hebrew thought the heart is not the seat of sentiment but the control room of the whole person, where thinking, desiring, and deciding live, and the verse names it a wellspring: everything a life produces flows up from there. What follows is not a new subject but the same subject walking: the mouth (v. 24), deceit and perversity put far away; the eyes (v. 25), fixed straight ahead; the feet (vv. 26–27), their path pondered, their steps established, swerving neither right nor left. The order is the teaching. The lecture does not begin with behavior and hope it seeps inward; it begins at the center and works outward, because mouth, eyes, and feet are downstream organs. They carry whatever the spring sends them.
What this verse contributes
This verse ends the chapter with the discipline of the straight line. "Right or left" is the old covenant's idiom for total course-keeping, the language Israel heard about the whole law of God, and its point is that departure does not require a U-turn; a few degrees of swerve, held long enough, arrives somewhere else entirely. The second line is the lecture's realism: feet do stray, and the remedy is not lament but removal, the foot picked up and put back. Heart guarded, mouth cleared, eyes fixed, feet straight: the chapter closes with a whole person pointed in one direction, which is what all three of its lectures were ever asking.
Related: Deuteronomy 5:32 · Joshua 1:7
New King James Version®, Copyright © 1982, Thomas Nelson. All rights reserved. Full copyright information. Scripture provided by API.Bible.
Go Deeper
If this verse has been used to put weight on you that it was never carrying, ask about it directly.