Unknown Author
1 Samuel 13:21ESV·author unknown

and the charge was two-thirds of a shekel for the plowshares and for the mattocks, and a third of a shekel for sharpening the axes and for setting the goads.

Matthew Henry Presbyterian @wholebiblehenry

Here, 1. Samuel departs in displeasure. Saul has set up for himself, and now he is left to himself: Samuel gat him from Gilgal (Sa1 13:15), and it does not appear that he either prayed with Saul or directed him. Yet in going up to Gibeah of Benjamin, which was Saul's city, he intimated that he had not quite abandoned him, but waited to do him a kindness another time.

Commenting on 1 Samuel 13:15-23

John Gill Reformed Baptist @doctorgill

Yet they had a file for the mattocks, and for the coulters, and for the forks, and for the axes,.... Those that would not go to the Philistines, or were not able, or thought it too much trouble, these kept files by them to sharpen those several instruments with upon occasion; though the words are by some rendered in connection with the preceding, to this...

Jamieson-Fausset-Brown Reformed @jfbcommentary

Yet they had a file--as a kind of privilege, for the purpose of sharpening sundry smaller utensils of husbandry. Next: 1 Samuel Chapter 14