A Prayer for the Holy Spirit

O most merciful Father,
send down your Holy Spirit
on us your servants,
and fill us with your grace
and heavenly blessing,
that we may be sanctified
and devoted to your service.
Since you mercifully descend to us
to make our hearts your Temple,
grant that we may never defile your sanctuary
by any impure or unholy thoughts,
but may preserve  ourselves as fit dwellings
and resting places for you;
through Jesus Christ our Lord.
Amen.

Source: Freely modified from Euchologion. A collection of Prayers, etc. for the use of families, 1847, p. 56.

This prayer is a reflection on 1 Corinthians 6:19.

Original in traditional English:

Send down Thy Holy Spirit, O most merciful Father, upon us Thy servants, and so fill us with Thy grace and heavenly benediction, that we may be sanctified and devoted to Thy service. And since Thou mercifully condescendest to make our hearts Thy Temple, grant that we may never defile Thy sanctuary by any impure or unholy thoughts, but may preserve it fit for Thy abode and resting place; through Jesus Christ our Lord. Amen.