O merciful and eternal God, heavenly Father, we thank you for revealing to us the glory of your Son and letting the light of your gospel shine on us. Guide us by this light that we may walk diligently as Christians in all good works, always be strengthened by your grace and conduct our lives in all godliness; through your beloved Son, Jesus Christ our Lord, who lives and reigns with you and the Holy Spirit, one true God, now and forever. Amen.
Source: Veit Dietrich
Source of this version: Freely modified from The Lutheran Hymnary, 1913,http://olcc.us/liturgical-resources/collects-veit-dietrich/ (Epiphany 6)