1 Thessalonians 4:1

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. Because his love to them was very great, he exhorts them very earnestly: We beseech and exhort you. The apostle was unwilling to take any denial, and therefore repeats his exhortation again and again. 2. The matter of his exhortation - that they would abound more and more in holy walking, or excel in those things that are good, in good works. Their faith was justly famed abroad, and they were already examples to other churches: yet the apostle would have them yet further to excel others, and to make further progress in holiness. Note, (1.) Those who most excel others fall short of perfection. The very best of us should forget those things which are behind, and reach forth unto those things which are before. (2.) It is not enough that we abide in the faith of the gospel, but we must abound in the work of faith. We must not only persevere to the end, but we should grow better, and walk more evenly and closely with God. 3. The arguments with which the apostle enforces his exhortation. (1.) They had been informed of their duty.

— Matthew Henry's Concise Commentary (public domain)