O God, who before the passion of your only-begotten Son revealed his glory upon the holy mountain: Grant to us that we, beholding by faith the light of his countenance, may be strengthened to bear our cross, and be changed into his likeness from glory to glory; through Jesus Christ our Lord, who lives and reigns with you and the Holy Spirit, one God, for ever and ever. Amen. (Last Sunday after Epiphany, BCP 1979, page 217)