from the Psalms appointed for today's Morning Prayer
Psalm 4 v9
I will lay me down in peace, and take my rest, for it is Thou, Lord, only, that makest me dwell in safety.
Psalm 5 v8
Lead me Lord, in thy righteousness, because of mine enemies; make thy way plain before my face.
http://cantusmundi.blogspot.co.uk/2010/07/lead-me-lord.html Crosfields School Boys Choir is the best version in my opinion.