Almighty Father,
as we honor Thomas the apostle,
let us always experience the help of his prayers.
May we have eternal life by believing in Jesus,
whom Thomas acknowledged as Lord,
for He lives and reigns with You and the Holy Spirit,
one God, for ever and ever. Amen.

For my father on his birthday:

Thine ear, O Lord, unto our prayers, wherein we humbly pray Thee to show Thy mercy upon the soul of Thy servant Thomas, whom Thou hast commanded to pass out of this world,that Thou wouldst place him in the region of peace and light, and bid him be partaker with Thy Saints.
Through Christ our Lord. Amen.