Moses
Psalm 120:4BSB·traditional attribution

Sharp arrows will come from the warrior, with burning coals of the broom tree!

John Calvin Reformed @genevareformer

4. The arrows of a strong man sharpened, with coals of juniper. Here the Psalmist amplifies in another way the malice of such as distress the simple and innocent by their calumnies, affirming that they throw out their injurious reports just like a man who should draw an arrow, and with it pierce through the body of his neighbor; and that their calumnies were like...

C.H. Spurgeon Reformed Baptist @princeofpreachers

Sharp arrows of the mighty. Swift, sure, and sharp shall be the judgment. Their words were as arrows, and so shall their punishment be. God will see to it that their punishment shall be comparable to an arrow keen in itself, and driven home with all the force with which a mighty man shoots it from his bow of steel, —"sharp arrows of the mighty".

Matthew Henry Presbyterian @wholebiblehenry

Here is, I. Deliverance from a false tongue obtained by prayer. David records his own experience of this. 1. He was brought into distress, into great distress, by lying lips and a deceitful tongue. There were those that sought his ruin, and had almost effected it, by lying. (1.) By telling lies to him.

Commenting on Psalm 120:1-4