Man is not promised an endless supply of strength for him to store up. Rather, God promises to provide the necessary grace and strength for the present trials.
Once confronted by the presence of the Holy One, man’s personal viewpoint always becomes increasingly realistic. By all standards, Job was a good man, yet the presence of God caused him to abhor himself “and repent in dust and ashes.” Conviction always magnifies the greatness of God and reminds man of his own vile nature. Ezra’s conviction was described as heaviness (Ezra 9:5) which caused him to rend his garment. That conviction humbled Ezra to the point where he said, “I am ashamed and blush to lift up my face to thee, my God: for our iniquities are increased over our head, and our trespass is grown up unto the heavens” (Ezra 9:6).
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).
