David
Psalm 140:2BSB·traditional attribution

who devise evil in their hearts and stir up war all day long.

John Calvin Reformed @genevareformer

PSALM 140 David complains of the implacable cruelty of his enemies, and of their treachery and rancorous calumnies. In the close, having besought God’s help, and expressing his persuasion of obtaining his layout, he comforts himself with the hope of deliverance, and just vengeance being executed upon his enemies. To the chief Musician — A Psalm of David. Psalm 140:1-5 1. Deliver me, O Jehovah!

Commenting on Psalm 140:1-13

C.H. Spurgeon Reformed Baptist @princeofpreachers

Which imagine mischiefs in their heart. They cannot be happy unless they are plotting and planning, conspiring and contriving. They seem to have but one heart, for they are completely agreed in their malice; and with all their heart and soul they pursue their victim. One piece of mischief is not enough for them; they work in the plural, and prepare many arrows for their bow.

Matthew Henry Presbyterian @wholebiblehenry

In this, as in other things, David was a type of Christ, that he suffered before he reigned, was humbled before he was exalted, and that as there were many who loved and valued him, and sought to do him honour, so there were many who hated and envied him, and sought to do him mischief, as appears by these verses, where, I.

Commenting on Psalm 140:1-7