The Apostle Paul
1 Thessalonians 4:1ESV·traditional attribution

Finally, then, brothers, we ask and urge you in the Lord Jesus, that as you received from us how you ought to walk and to please God, just as you are doing, that you do so more and more.

John Calvin Reformed @genevareformer

1 Furthermore. This chapter contains various injunctions, by which he trains up the Thessalonians to a holy life, or confirms them in the exercise of it. They had previously learned what was the rule and method of a pious life: he calls this to their remembrance. As, says he, ye have been taught.

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

Furthermore then we beseech you, brethren,.... Or request of you in the most kind and tender manner, from real and hearty love and affection for you, and with a view to your good, and the glory of God: and exhort you: or beseech and entreat you.