Reconciliation, redemption, rebirth, and resurrection are frequent themes in the psalms of new orientation. They welcome God’s rescue and healing and look beyond present troubles, because God turns our ‘mourning into dancing’ and ‘those who sow in tears will sing when they reap.’  

The Psalter brims with songs of restoration, from the personal and communal thanksgiving songs (34, 40, and 138; or 65, 66, 124, and 129, respectively) to the songs to the once and future king (29, 47, 93, 97, 98, 99, and 114) and hymns of praise (100, 103, 113, 117, 135, 146, 147, 148, 149, and 150) 

See several works by Walter Brueggemann, eg The Message of the Psalms,  1984; Spirituality of the Psalms, 2002

I WILL PRAISE you, Lord, you have rescued me

and have not let my enemies rejoice over me.

O Lord, I cried to you for help

and you, my God, have healed me.

O Lord, you have raised my soul from the dead,

restored me to life from those who sink into the grave.

Sing psalms to the Lord, you who love him,

give thanks to his holy name.

His anger lasts a moment; his favour all through life.

At night there are tears, but joy comes with dawn.

I said to myself in my good fortune:

"Nothing will ever disturb me." 

Your favour had set me on a mountain fastness..

Then you hid your face, and I was put to confusion. 

To you, Lord, I cried,

to my God I made appeal:

"What profit would my death be, my going to the grave?

Can dust give you praise or proclaim your truth?"

The Lord listened and had pity.

The Lord came to my help.

For me you have changed my mourning into dancing,

you removed my sackcloth and girded me with joy.

So my soul sings psalms to you unceasingly.

O Lord my God, I will thank you for ever.

This excerpt from an Eastertide sermon by Saint Augustine on Psalm 149 was addressed to the newly baptized, who Augustine considers as the chosen, holy seed.  Since they’ve been born again in Jesus Christ through the Sacrament of baptism,  These men and women should sing a new song to the Lord, a song of love and joy.

Sing to the Lord a new song; his praise is in the assembly of the saints (Psalm 149:1). We are urged to sing a new song to the Lord, as new men who have learned a new song. A song is a thing of joy; more profoundly, it is a thing of love. Anyone, therefore, who has learned to love the new life has learned to sing a new song, and the new song reminds us of our new life. The new man, the new song, the new covenant, all belong to the one kingdom of God, and so the new man will sing a new song and will belong to the new covenant.

There is not one who does not love something, but the question is, what to love. The psalms do not tell us not to love, but to choose the object of our love. But how can we choose unless we are first chosen? We cannot love unless someone has loved us first. Listen to the apostle John: We love him, because he first loved us. The source of man’s love for God can only be found in the fact that God loved him first. He has given us himself as the object of our love, and he has also given us its source. What this source is you may learn more clearly from the apostle Paul who tells us: The love of God has been poured into our hearts. This love is not something we generate ourselves; it comes to us through the Holy Spirit who has been given to us (Romans 5:5).

Since we have such an assurance, then, let us love God with the love he has given us. As John tells us more fully: God is love, and whoever dwells in love dwells in God, and God in him. It is not enough to say: Love is from God. Which of us would dare to pronounce the words of Scripture: God is love? He alone could say it who knew what it was to have God dwelling within him. God offers us a short route to the possession of himself. He cries out: Love me and you will have me for you would be unable to love me if you did not possess me already.

My dear brothers and sons, fruit of the true faith and holy seed of heaven, all you who have been born again in Christ and whose life is from above, listen to me; or rather, listen to the Holy Spirit saying through me: Sing to the Lord a new song. Look, you tell me, I am singing. Yes indeed, you are singing; you are singing clearly, I can hear you. But make sure that your life does not contradict your words. Sing with your voices, your hearts, your lips and your lives: Sing to the Lord a new song’.

Now it is your unquestioned desire to sing of him whom you love, but you ask me how to sing his praises. You have heard the words: Sing to the Lord a new song, and you wish to know what praises to sing. The answer is: His praise is in the assembly of the saints; it is in the singers themselves. If you desire to praise him, then live what you express. Live good lives, and you yourselves will be his praise.

Sit in your cell as in paradise. Put the whole world behind you and forget it. Watch your thoughts like a good fisherman watching for fish. The path you must follow is in the Psalms; never leave it. If you have just come to the monastery, and in spite of your good will you cannot accomplish what you want, then take every opportunity to sing the Psalms in your heart and to understand them with your mind.

And if your mind wanders as you read, do not give up. Hurry back and apply your mind to the words once more. Realize above all that you are in God’s presence, and stand there with the attitude of one who stands before an emperor. Empty yourself completely and sit waiting, content with the grace of God, like the chick who tastes nothing and eats nothing but what his mother gives him

The Lord is my shepherd;

there is nothing I shall want.

Fresh and green are the pastures

where he gives me repose.

Near restful waters he leads me,

to revive my drooping spirit.

He guides me along the right path;

he is true to his name.

If I should walk in the valley of darkness

no evil would I fear.

You are there with your crook and your staff;

with these you give me comfort.

You have prepared a banquet for me

in the sight of my foes.

My head you have anointed with oil;

my cup is overflowing.

Surely goodness and kindness shall follow me

all the days of my life.

In the Lord's own house shall I dwell

for ever and ever.