let the brightness of your glory shine on us,
and let the Light from Light by your Holy Spirit
shine in the hearts of all who have been born again by your grace;
through your Son, Jesus Christ our Lord.
Source: Roman Mass for the Vigil of Pentecost
Source of this version: Freely modified from The Common Service Book of the Lutheran Church, United Lutheran Church in America © 1918, #8
Original in Latin:
PRÆSTA, quæsumus, omnipotens Deus, ut claritatis tuæ super nos splendor effulgeat; et lux tuæ lucis corda eorum, qui per gratium tuam renati sunt, Sancti Spiritus illustratione confirmet. Per Dominum.
“Light from Light” is a reference to the Nicene Creed, and is referring to Jesus Christ
“shine in the hearts of all is a reference to 2 Corinthians 4:6
“let the brightness of your glory shine on us” may have been the source of the lines from Luther’s hymn, “Come Holy Ghost, God and Lord,”
“Lord, by the brightness of your light
In holy faith your church unite”