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 connection of fear and service cannot be missed. Worldly fear brings bondage and hinders Christian service; yet godly fear encourages the believer to serve the Lord in righteousness. In our passage, fear is yoked together with truthful and sincere service. Three different verses in 1 Samuel chapter 12 make the same connection (1 Samuel 12:14, 20, 24). In Psalm 2:11, we are admonished to “serve the Lord with fear, and rejoice with trembling.” According to Hebrews 12:28, we should “serve God acceptably with reverence and godly fear.” The fear of the Lord points forward to a time of judgment and reward. A man who refuses to fear God will never serve God with a sincere heart and pure motives.
