"Lighten our darkness, we beseech thee, O Lord; and by thy great mercy defend us from all perils and dangers of this night; for the love of thy only Son, our Saviour, Jesus Christ. Amen."

Gelasian sacramentary no. 1589 (mid-8th):

• Illumina, quaesumus, Domine, tenebras nostras, et totius noctis insidias repelle propitius.  Per.
• Illumina, quaesumus, Domine, tenebras nostras, et totius noctis insidias tu repelle propitius.  Per.
• Illumina, quaesumus, Domine, tenebras nostras, et totius noctis insidias tu a nobis repelle propitius.  Per.

• http://www.rifugiodelleanime.org/gevweb/:  Inlumina, quaesumus, domine, tenebras nostras et tocius noctis insidiis repelle propicius: per.

Gregorian sacramentary no. 936 (8th), ed. Deschusses (8th):

• Inlumina quaesumus domine tenebras nostras et totius noctis insidias tu repelle.  Per.
• [Add the variant readings]

Gallican Bobbio missal no. 565 (8th):  Inlumina qu[aesu]mus domine tenebras nostras et tocius noctis insidiis repelle propicius per

Sarum rite:

     This prayer does not appear in Corpus orationum under either Illumina or Inlumina.