"Those who are planted in the house of the Lord shall flourish in the courts of our God. They shall still bear fruit in old age; they shall be fresh and flourishing, to declare that the Lord is upright; He is my rock, and there is no unrighteousness in Him" (Psalm 92:13-15).
Old age does not prevent bearing fruit for the Lord. When one's life is rooted in God's house (a Christian in His church, 1 Tim. 3:15), age does not prevent us from declaring the righteousness of God and the solid foundation of security we have in Him. When age is coupled with faith in the living God we do not lose heart, for "even though our outward man is perishing, yet the inward man is being renewed day by day" (2 Cor. 4:16, 17-18).
There is much you can do in the kingdom as an elderly Christian. You can pray earnestly and keep your hope firmly fixed on the Lord (Psa. 71:1-14). You can rejoice in God's salvation and worship God continually (Psa. 71:8, 22-23). Like Simeon and Anna, you can speak God's truth to others and tell the next generation of God's strength and mercy (Psa. 71:18-20; Lk. 2:25-32, 36-38).
What a marvelous and encouraging influence older Christians have as they faithfully assemble for worship, wisely teach and counsel from God's word, and live in the hope of eternity! Although our bodies are growing drier and weaker, our faith will be fresh and flourish as we trust the Lord and do His will each day. The legacy you will leave is a life of faith and heavenly treasures in the Lord (Matt. 6:19-21).