Wherefore Hanun took David's servants, and shaved off the one half of their beards, and cut off their garments in the middle, even to their buttocks, and sent them away.

Wesley's Notes

10:4 Shaved - To fasten this is a reproach upon them, and to make them ridiculous and contemptible. Cut off, and c. - This was worse than the former, because the Israelites wore no breeches, and so their nakedness was hereby uncovered.

Jamieson-Fausset-Brown Bible Commentary

4. Hanun took David's servants, and shaved off the one half of their beards-From the long flowing dress of the Hebrews and other Orientals, the curtailment of their garments must have given them an aspect of gross indelicacy and ludicrousness. Besides, a knowledge of the extraordinary respect and value which has always been attached, and the gross insult that is implied in any indignity offered, to the beard in the East, will account for the shame which the deputies felt, and the determined spirit of revenge which burst out in all Israel on learning the outrage. Two instances are related in the modern history of Persia, of similar insults by kings of haughty and imperious temper, involving the nation in war; and we need not, therefore, be surprised that David vowed revenge for this wanton and public outrage.

Matthew Henry's Concise Commentary

10:1-5 Nahash had been an enemy to Israel, yet had showed kindness to David. David therefore resolves gratefully to return it. If a Pharisee gives alms in pride, though God will not reward it, yet he that receives the alms ought to return thanks for it. Those who bear ill-will to their neighbours, are resolved not to believe that their neighbours bear any good-will to them. There is nothing so well meant, but it may be ill interpreted, and is wont to be so, by men who love nobody but themselves. The best men must not think it strange if they are thus misrepresented. Charity thinketh no evil. According to the usages of those days and countries, Hanun treated David's ambassadors in the most contemptuous manner. David showed much concern for his servants. Let us learn not to lay unjust reproaches to heart; they will wear off, and turn only to the shame of those who utter or do them; while the reputation wrongfully hurt in a little time grows again, as these beards did. God will bring forth thy righteousness as the light, therefore wait patiently for him, Ps 37:6,7.