See that your chief study be about your heart, that there God’s image may be planted, and his interest advanced, and the interest of the world and flesh subdued, and the love of every sin cast out, and the love of holiness succeed.
— Richard Baxter
The Human Heart
The human heart has so many crannies where vanity hides, so many holes where falsehood works, is so decked out with deceiving hypocrisy — that it often dupes itself!
— John Calvin
The Heart
Nothing is more contrary to a heavenly hope than an earthly heart.
— William Gurnall
The Christian’s Heart
The first and the great work of a Christian is about his heart. Do not be content with seeming to do good in “outward acts” while your heart is bad, and you are a stranger to the greater internal heart duties.
— Jonathan Edwards