A priest starts:
Blessed is our God, at all times — now and always and forever and
ever! Amen.

Anyone else:
By the prayers of our holy fathers, O Lord Jesus Christ our God,
have mercy on us and save us. Amen.

Then:
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Glory to You, O our God, glory to You!
O Heavenly King, Consoler, Spirit of truth, present in all places
and filling all things, the Treasury of blessings and the Giver of
Life: come, O Good One, and dwell in us, cleanse from all stain
and save our souls.
Holy God! Holy Mighty One! Holy Immortal One!
Have mercy on us ( 3 times)
Glory to the Father and to the Son and to the Holy Spirit, now and
always and forever and ever. Amen.
All-Holy Trinity, have mercy on us.
Lord, forgive our sins
Master, pardon our transgressions.
Holy One, look upon us and heal our infirmities for Your name’s sake.

Lord, have mercy ( 3 times).

Glory to the Father and to the Son and to the Holy Spirit, now and
always and forever and ever. Amen.
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Our Father, who art in heaven, hallowed be Thy name. Thy
kingdom come. Thy will be done on earth as it is in heaven. Give
us this day our daily bread, and forgive us our trespasses as we
forgive those who trespass against us. And lead us not into
temptation, but deliver us from evil.
For Thine is the kingdom and the power and the glory, of the
Father and of the Son and of the Holy Spirit, now and always and
forever and ever.
Amen.

Troparia (tone six)
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Have mercy on us, O Lord, have mercy on us! At a loss for any
defense, we sinners offer this prayer to You, O Master: have mercy
on us!
Glory… Heaven reveals to the Church, O Lord, Your honorable
prophet David, and angels join mankind in songs of entreaty to
You, O Christ God: put our lives in order by his prayers, that we
might sing to You: Aleluia!
Now and always … My weak soul is in desperate need of your
help, O Theotokos, and so I run for my life to you, sinner that I
am. Beg your Son and God to forgive the wrongs I have done, O
only pure and blessed one!
Lord, have mercy! (forty times, with prostrations, as possible)

Prayer to the Holy Trinity
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Holy Trinity! God, Creator of the world: grant me the ability to
undertake and complete this exercise of holy and spiritual
psalmody which the Holy Spirit brought to the lips of David, and
which I hope to repeat now, unworthy though I be. I know my
ignorance, and so I fall before You, praying and beseeching Your
help as I cry out: “O Lord, strengthen my mind, and do not permit
me to offend You with my lips. Strengthen my heart to recite these
psalms with joy and understanding, that they might lead me on to
good works. Let me be sanctified by these good works and at the
time of judgment, let me have a place at Your right side in the
company of heaven. Having declared my sincerity. Master, permit
me to sing:
Come, let us worship God and King and bow down before Him!
Come, let us worship Christ God, our King, and bow down before
Him!
Come, let us worship Christ, our King and our God and bow down before Him!

Then, after silent prayer, slowly but without dragging, begin the psalms in sincerity and compunction of heart, and continue unhurriedly, attentively, gently and with comprehension that the mind might fathom what the lips recite.