Conversion
Our text has in it, first of all, a principle involved--that of instrumentality.--"Brethren, if any of you do err from the truth, and one convert him; let him know that he who converteth a sinner from the error of his way, shall save a soul from death." Secondly, here is a general fact stated:--"He who converteth a sinner from the error of his way, shall save a soul from death, and shall hide a multitude of sins." And thirdly, there is a particular application of this fact made. "Brethren, if any …
Charles Haddon Spurgeon—Spurgeon's Sermons Volume 1: 1855

Prayer for and with Each Other.
"Confess your faults one to another and pray one for another, that ye may be healed. The effectual, fervent prayer of a righteous man availeth much."--James v. 16. Let our last article touch once more the key of love wherein the article preceding that of prayer was set. To speak of the Spirit's work in our prayers, omitting the intercession of the saints, betrays a lack of understanding concerning the Spirit of all grace. Prayer for others is quite different from prayer for ourselves. The latter …
Abraham Kuyper—The Work of the Holy Spirit

On the Sacrament of Extreme Unction.
To this rite of anointing the sick our theologians have made two additions well worthy of themselves. One is, that they call it a sacrament; the other, that they make it extreme, so that it cannot be administered except to those who are in extreme peril of life. Perhaps--as they are keen dialecticians--they have so made it in relation to the first unction of baptism, and the two following ones of confirmation and orders. They have this, it is true, to throw in my teeth, that, on the authority of …
Martin Luther—First Principles of the Reformation