A good Bible student often incorporates many of the same tactics as a good detective. Defining Bible words involves such a task. No single verse specifically defines the word bitterness. Yet, a careful study of a few verses will help to bring the pieces together and to provide understanding. According to Isaiah, bitterness and peace are at opposite ends of the emotional spectrum (Isaiah 38:17). Proverbs associates the word bitter directly to the word sharp (Proverbs 5:4). And, lastly, the word bitter is connected to the word affliction (2 Kings 14:26, Lamentations 1:4). Using these scriptural clues, a good student will understand bitterness to be a sharp affliction. Additionally, consider the connection between the words bitter and bite, making bitterness a sharp affliction with bite. Bitterness always begins on the inside of an individual and, as we will learn, eventually works its way to the outside for others to see.
A tender heart quickly and readily yields when offered correction; however, as a heart becomes hardened, the times of yielding become fewer and farther apart. During the hardening process, the individual finds the true nature of the heart more difficult to grasp. As the heart further hardens, the individual finds himself involved in further defiance. The mischief may start as seemingly insignificant, but a hardening heart will ultimately lead to greater depths of wickedness, some seemingly unimaginable only a short time ago. Some of the worst sins committed in the Bible by God's people were committed by those who shortly before had displayed a tender heart. Yet, they allowed their hearts to be hardened by the deceitfulness of sin.
