Therefore, my beloved brethren, be steadfast, immovable, always abounding in the work of the Lord, knowing that your labor is not in vain in the Lord.—1 Corinthians
It is good to come to the understanding that while God wants us to be holy and Spirit-filled, He does not expect us to look like Abraham or to play the harp like David or to have the same spiritual insight given to Paul.
All of those former heroes of the faith are dead. You are alive in your generation. A Bible proverb says that it is better to be a living dog than a dead lion. You may wish to be Abraham or Isaac or Jacob, but remember that they have been asleep for long centuries, and you are still around! You can witness for your Lord today. You can still pray. You can still give of your substance to help those in need. You can still encourage the depressed.
I hope you have not missed something good from God's hand because you felt you did not measure up to Gideon or Isaiah. In this your generation, give God all of your attention! Give Him all of your love! Give Him all of your devotion and faithful service! You do not know what holy, happy secret God may want to whisper to your responsive heart. Jesus, Author of our Faith, 72.
"Father, I commit myself to faithfulness today. I don't have the great gifts of these 'former heroes of the faith.' But You've given me life today; You've given me the gifts You want me to have and use; You've called me by Your grace to serve You. I give it all to You today. Amen."