Harold St. John, a great Bible teacher and preacher of a previous generation, was once asked which commentaries and helps to Bible study he would recommend. His reply went something like this: “A man who deals with Scripture,” he said, “has a conscience which needs to be trained, a heart which must be warmed, and a will that should be yielded, and finally, a mind which must be fed. For the conscience, none is better than Alexander Whyte—his Lord, Teach Us to Pray and With Mercy and With Judgment will make his readers hot and ashamed.” And sometimes, being hot and ashamed is just what we need, spiritually speaking. “Do no put off reading Whyte’s sermons,” urges Warren Wiersbe in his 50 People Every Christian Should Know. The sermons found in this collection were deemed by the compilers to be representative of Dr. Whyte’s pulpit ministry. The title was taken from the hymn which was mostly closely associated with his ministry, being the one he chose perhaps oftener than any other for the close of a service.