By John Flavel (Author), James Rasbeary (Editor)

Paperback Edition

“Keep thy heart with all diligence; for out of it are the issues of life.” — Proverbs 4:23
In this timeless Puritan classic, John Flavel shows that the heart is the wellspring of all spiritual life—and that the greatest task of the Christian is to keep it diligently before God. With clarity and urgency, Flavel speaks to every season of life—prosperity, adversity, temptation, duty, suffering, and even death—urging believers to guard their inner life in dependence on Christ.
This edition remains true to Flavel’s original text while adding helpful explanatory comments, a full historical introduction, and thoughtful questions for personal contemplation or group discussion.
In an age of noise and distraction, Keeping the Heart offers wise and practical guidance for cultivating sincerity, assurance, and communion with God. Here is a book that has strengthened Christians for centuries—and still speaks with power today.