The Apostle Paul
1 Thessalonians 4:2BSB·traditional attribution

For you know the instructions we gave you by the authority of the Lord Jesus.

Matthew Henry Presbyterian @wholebiblehenry

Here we have, I. An exhortation to abound in holiness, to abound more and more in that which is good, Th1 4:1, Th1 4:2. We may observe, 1. The manner in which the exhortation is given - very affectionately. The apostle entreats them as brethren; he calls them so, and loved them as such.

Commenting on 1 Thessalonians 4:1-8

John Gill Reformed Baptist @doctorgill

For ye know what commandments we gave you,.... When among them; such as those of faith and love, the ordinances of the Gospel, baptism, and the Lord's supper, and all such as relate to the worship and service of God, to the discipline of Christ's house, to their behaviour one towards another, and their conduct in the world: and which were delivered to them, not...

Albert Barnes Presbyterian @notesbybarnes

Verse 2. For ye know what commandments. It was but a short time Paul was with them, and they could not but recollect the rules of living which he had laid down. By the Lord Jesus. By the authority of the Lord Jesus. Some of those rules, or commandments, the apostle refers to, probably, in the following verses.