Unfortunately, some Christians have become convinced that old age serves as a sufficient excuse for a lack of service to the Lord’s work. Granted, the field of one’s service may change, but there should always remain a willingness to serve. For instance, Moses received his initial call to deliver Israel at forty years old (Acts 7:23) but did not lead God’s people out of Egypt until he was eighty (Exodus 7:7). When he died at 120 years of age, he remarked that “his eye was not dim, nor his natural force abated” (Deuteronomy 34:7). At forty years of age, Caleb received a promise from Moses concerning the possession of land in Canaan (Joshua 14:7-9). Forty-five years later, Caleb took possession by driving out the mighty Anakims (Joshua 14:10-12). Caleb did something in his old age that many of the young men could not or would not attempt (Joshua 17:13).
The strength of any people will be determined by how they deal with two people groups: their young and their old. If at any point, either of these two groups becomes viewed as simply burdensome, both will cease to effectively attain God’s intended desire for society. The aged members of society are most often its wisest. They have had successes and failures and learned from both (Deuteronomy 32:7). They have witnessed the Lord’s provision through difficult times (Psalm 37:25). God purposed for the aged to instruct the young in practical and spiritual matters (Titus 2:1-11). While the young should feed off of the wisdom of the aged, the elderly members of society can be nourished by the joy, strength, and life of younger people (Ruth 4:15).
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).
In Deuteronomy, Moses rehearsed the events that led up to God’s denying him entry into the promised land though he was Israel’s leader at the time. The Lord instructed Moses, as he stood upon Mt. Pisgah, to encourage and strengthen Joshua. Moses could have offered numerous excuses for not wanting to encourage Joshua. Instead, Moses determined to obey God by strengthening and encouraging his successor. He knew that Joshua as Moses’ replacement was about to face some of the greatest trials of his life. There would be times of fear along with battles and obstacles, small and great. The Lord knew Joshua desperately needed courage to make it through these trials. He, therefore, enlisted Moses and instructed His children to encourage the new leader during this difficult transition (Deuteronomy 1:38).
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).
Courage originates within the heart of the individual. Two chief witnesses testify to this truth: (1) The English word courage comes from a word plainly connected to the heart, and (2) MultipleBible passages associate courage with the heart (Numbers 32:7, 9; Deuteronomy 1:28; Psalm 27:4; Psalm 31:24). The scripture declares in our passage that the hearts of the people melted as they lost courage (i.e., they lost strength). Other Bible passages associate courage with the strengthening of the heart (Psalm 27:14; Psalm 31:24). These truths illustrate that courage reflects strength of heart and that courage is based upon faith, hope, and trust in God.
