Although the Bible repeatedly warns against fretting, believers fret because of others. Sadly, one’s worry can make the sin of others seem more desirable. We should not fret because of “evildoers” (Psalm 37:1), or “him who prospereth in his way (Psalm 37:7), or “the man who bringeth wicked devices to pass” (Psalm 37:7), or even “evil men” (Proverbs 24:19). Some believers may fret about these people because of their fears, but the scripture offers another reason why believers fret over the wicked. According to Psalm 37:1 and Proverbs 24:19, fretting over the wicked is directly associated to one’s envy toward them. Perhaps believers worry about these people so much because there is a deep-rooted desire to become like them. This desire can be rooted in the fact that those whom we fear are viewed as more powerful, more in control, and even more confident. Eliminate the envy and you will eliminate the fear.
As Moses recounted Israel’s time in the wilderness, he reminded God’s people of the reasons for their failure to enter into the land of promise. He rehearsed how it was the people who approached him requesting that spies first be sent into the land to explore it. If the people had trusted God, surveying the land would have been unnecessary. Yet, the people doubted God’s provisions so Moses sent in the spies. When they returned, they expressed stories of giants and walled cities that made the people fear to carry out God’s will. The spies’ report '"discouraged” (Deuteronomy 1:28) the hearts of the people. This loss of courage yielded an unbelief in the people (Deuteronomy 1:32), greatly displeasing the Lord (Hebrews 3:17-19).
As we have seen, courage comes from a strength of heart. On the contrary, the Bible likens discouragement (the opposite of courage) to a melted heart (Joshua 2:11). In other words, discouragement takes place when a man’s heart loses strength. The Bible reveals that discouragement comes through various avenues of life. Men become discouraged because of “the way” (i.e., the circumstances of life) (Numbers 21:4). Discouragement also results from fear and unbelief (Deuteronomy 1:28) and the magnitude of a task (1 Chronicles 28:20). Ultimately, discouragement rears its ugly head as a result of a lack of faith in God and His word. Since discouragement and a lack of faith go hand in hand, a discouraged man cannot please God (Hebrews 11:6).
