Speak unto the children of Israel, and bid them that they make them fringes in the borders of their garments throughout their generations, and that they put upon the fringe of the borders a ribband of blue:

Wesley's Notes

15:38 Fringes - These were certain threads or ends, standing out a little further than the rest of their garments, lest there for this use. In the borders - That is, in the four borders or quarters, as it is, Deut 22:12. Of their garments - Of their upper garments. This was practiced by the Pharisees in Christ's time, who are noted for making their borders larger than ordinary. A ribband - To make it more obvious to the sight, and consequently more serviceable to the use here mentioned. Of blue - Or, purple.

Scofield Reference Notes

[1] ribband of blue

The ribband of blue. Blue, the heavenly colour, used upon the borders of the priests' garments signified that the servants of God were to be heavenly in obedience and character, and separate from earthly ambitions and desires.

Jamieson-Fausset-Brown Bible Commentary

38. bid them that they make them fringes in the borders of their garments-These were narrow strips, in a wing-like form, wrapped over the shoulders and on various parts of the attire. "Fringe," however, is the English rendering of two distinct Hebrew words-the one meaning a narrow lappet or edging, called the "hem" or "border" (Mt 23:5; Lu 8:44), which, in order to make it more attractive to the eye and consequently more serviceable to the purpose described, was covered with a riband of blue or rather purple color; the other term signifies strings with tassels at the end, fastened to the corners of the garment. Both of these are seen on the Egyptian and Assyrian frocks; and as the Jewish people were commanded by express and repeated ordinances to have them, the fashion was rendered subservient, in their case, to awaken high and religious associations-to keep them in habitual remembrance of the divine commandments.

Matthew Henry's Concise Commentary

15:37-41 The people are ordered by the Lord to make fringes on the borders of their garments. The Jews were distinguished from their neighbours in their dress, as well as in their diet, and thus taught not to be conformed to the way of the heathen in other things. They proclaimed themselves Jews wherever they were, as not ashamed of God and his law. The fringes were not appointed for trimming and adorning their clothes, but to stir up their minds by way of remembrance, 2Pe 3:1. If they were tempted to sin, the fringe would warn them not to break God's commandments. We should use every means of refreshing our memories with the truths and precepts of God's word, to strengthen and quicken our obedience, and arm our minds against temptation. Be holy unto your God; cleansed from sin, and sincerely devoted to his service; and that great reason for all the commandments is again and again repeated, I am the Lord your God.

Matthew Henry's Whole Bible Commentary

Verses 37-41

Provision had been just now made by the law for the pardon of sins of ignorance and infirmity; now here is an expedient provided for the preventing of such sins. They are ordered to make fringes upon the borders of their garments, which were to be memorandums to them of their duty, that they might not sin through forgetfulness. 1. The sign appointed is a fringe of silk, or thread, or worsted, or the garment itself ravelled at the bottom, and a blue riband bound on the top of it to keep it tight, v. 38. The Jews being a peculiar people, they were thus distinguished from their neighbours in their dress, as well as in their diet, and taught by such little instances of singularity not to be conformed to the way of the heathen in greater things. Thus likewise they proclaimed themselves Jews wherever they were, as those that were not ashamed of God and his law. Our Saviour, being made under the law, wore these fringes; hence we read of the hem or border, of his garment, Mt. 9:20. These borders the Pharisees enlarged, that they might be thought more holy and devout than other people. The phylacteries were different things; these were their own invention, the fringes were a divine institution. The Jews at this day wear them, saying, when they put them on, Blessed be he who has sanctified us unto himself, and commanded us to wear fringes. 2. The intention of it was to remind them that they were a peculiar people. They were not appointed for the trimming and adorning of their clothes, but to stir up their pure minds by way of remembrance (2 Pt. 3:1), that they might look upon the fringe and remember the commandments. Many look upon their ornaments to feed their pride, but they must look upon these ornaments to awaken their consciences to a sense of their duty, that their religion might constantly beset them, and that they might carry it about with them, as they did their clothes, wherever they went. If they were tempted to sin, the fringe would be a monitor to them not to break God's commandments: If a duty was forgotten to be done in its season, the fringe would remind them of it. This institution, though it is not an imposition upon us, is an instruction to us, always to remember the commandments of the Lord our God, that we may do them, to treasure them up in our memories, and to apply them to particular cases as there is occasion to use them. It was intended particularly to be a preservative from idolatry: that you seek not after your own heart, and your own eyes, in your religious worship. Yet it may extend also to the whole conversation, for nothing is more contrary to God's honour, and our own true interest, than to walk in the way of our heart and in the sight of our eyes; for the imagination of the heart is evil, and so is the lust of the eyes.

After the repetition of some ceremonial appointments, the chapter closes with that great and fundamental law of religion, Be holy unto your God, purged from sin, and sincerely devoted to his service; and that great reason for all the commandments is again and again inculcated, I am the Lord your God. Did we more firmly believe, and more frequently and seriously consider, that God is the Lord, and our God and Redeemer, we should see ourselves bound in duty, interest, and gratitude, to keep all his commandments.