David
Psalm 50:7ESV·traditional attribution

“Hear, O my people, and I will speak; O Israel, I will testify against you. I am God, your God.

John Calvin Reformed @genevareformer

PSALM 50 There have always been hypocrites in the Church, men who have placed religion in a mere observance of outward ceremonies, and among the Jews there were many who turned their attention entirely to the figures of the Law, without regarding the truth which was represented under them. They conceived that nothing more was demanded of them but their sacrifices and other rites.

Commenting on Psalm 50:1-23

C.H. Spurgeon Reformed Baptist @princeofpreachers

The address which follows is directed to the professed people of God. It is clearly, in the first place, meant for Israel; but is equally applicable to the visible church of God in every age. It declares the futility of external worship when spiritual faith is absent, and the mere outward ceremonial is rested in.

Commenting on Psalm 50:7

C.H. Spurgeon Reformed Baptist @princeofpreachers

Hear, O my people, and I will speak. Because Jehovah speaks and they are avowedly his own people, they are bound to give earnest heed. "Let me speak, "saith the great I AM. The heavens and earth are but listeners, the Lord is about both to testify and to judge. O Israel, and I will testify against thee.