David
Psalm 78:21ESV·traditional attribution

Therefore, when the LORD heard, he was full of wrath; a fire was kindled against Jacob; his anger rose against Israel,

John Calvin Reformed @genevareformer

PSALM 78 To comprehend many things within small compass, it is to be observed, that in this psalm there are two leading topics. On the one hand, it is declared how God adopted for himself a Church from the posterity of Abraham, how tenderly and graciously he cherished it, how wonderfully he brought it out of Egypt, and how varied were the blessings which he bestowed upon it.

Commenting on Psalm 78:1-72

C.H. Spurgeon Reformed Baptist @princeofpreachers

Therefore the Lord heard this, and was wroth. He was not indifferent to what they said. He dwelt among them in the holy place, and, therefore, they insulted him to his face. He did not hear a report of it, but the language itself came into his ears. So a fire was kindled against Jacob. The fire of his anger which was also attended with literal burnings.

Matthew Henry Presbyterian @wholebiblehenry

In these verses, I. The psalmist observes the late rebukes of Providence that the people of Israel had been under, which they had brought upon themselves by their dealing treacherously with God, Psa 78:9-11. The children of Ephraim, in which tribe Shiloh was, though they were well armed and shot with bows, yet turned back in the day of battle.

Commenting on Psalm 78:9-39