Throughout the Bible, the “heart” is seen as the foundation of character. It acts as the command and control center of the person. To have a “clean heart” is to be acceptable before God (Ps. 51:10). Solomon comes to his 8th lecture and centers in on the necessity of “heart-keeping.” That is, the intentional filling and guarding of the heart, making sure that truth goes in and pollution does not. Why is this important? Simply because the heart is like a well out of which will flow the very springs of life. What fills the heart will characterize the life.