I have never felt too old to be used by God. But when I was younger, I wrestled with God about how I could be useful with physical limitations. I was diagnosed with Multiple Sclerosis around age forty and spent quite a few years physically impaired. God assured me through His Word that in my weakness He is strong. (2 Cor. 12:10) Then God went on to prove this truth to me by giving me opportunities to serve Him in various capacities. If we are breathing, He can use us for His glory.
Where Hope Blooms 