Moses
Deuteronomy 6:16ESV·traditional attribution

“You shall not put the LORD your God to the test, as you tested him at Massah.

John Calvin Reformed @genevareformer

16. Ye shall not tempt the Lord. Since the doctrine here should undoubtedly be referred to the First Commandment, we gather from it that this is the main foundation of piety, to give to Him what is His own, and to diminish nothing from the prerogative which He claims.

Matthew Henry Presbyterian @wholebiblehenry

Here is, I. A brief summary of religion, containing the first principles of faith and obedience, Deu 6:4, Deu 6:5. These two verses the Jews reckon one of the choicest portions of scripture: they write it in their phylacteries, and think themselves not only obliged to say it at least twice every day, but very happy in being so obliged, having this saying among them...

Commenting on Deuteronomy 6:4-16

John Gill Reformed Baptist @doctorgill

Ye shall not tempt the Lord your God,.... By striving with him or against him, by murmuring at or complaining of his providential dealings with them, or by requiring a sign of him, or miracles to be done by him; this is another passage used by Christ to repel the temptations of Satan, Mat 4:7, as tempted him in Massah; a place so called from...