The Apostle Paul
1 Thessalonians 5:20ESV·traditional attribution

Do not despise prophecies,

John Calvin Reformed @genevareformer

20 Despise not prophesyings. This sentence is appropriately added to the preceding one, for as the Spirit of God illuminates us chiefly by doctrine, those who give not teaching its proper place, do, so far as in them lies, quench the Spirit, for we must always consider in what manner or by what means God designs to communicate himself to us.

Matthew Henry Presbyterian @wholebiblehenry

Here we have divers short exhortations, that will not burden our memories, but will be of great use to direct the motions of our hearts and lives; for the duties are of great importance, and we may observe how they are connected together, and have a dependence upon one another. 1. Rejoice evermore, Th1 5:16.

Commenting on 1 Thessalonians 5:16-22

John Gill Reformed Baptist @doctorgill

Abstain from all appearance of evil. Of doctrinal evil. Not only open error and heresy are to be avoided, but what has any show of it, or looks like it, or carries in it a suspicion of it, or may be an occasion thereof, or lead unto it; wherefore all new words and phrases of this kind should be shunned, and the form of sound...