As referenced in 2 Chronicles 33:18-19:
18 "Now the rest of the acts of Manasseh, his prayer to his God, and the words of the seers who spoke to him in the name of the Lord God of Israel, these are in the Annals of the Kings of Israel. 19 His prayer, and how God received his entreaty, all his sin and his faithlessness, the sites on which he built high places and set up the sacred poles and the images, before he humbled himself, these are written in the records of the seers."
Prayer of Manasseh
Ascription of Praise
1 O Lord Almighty,
God of our ancestors,
of Abraham and Isaac and Jacob
and of their righteous offspring;
2 you who made heaven and earth
with all their order;
3 who shackled the sea by your word of command,
who confined the deep
and sealed it with your terrible and glorious name;
4 at whom all things shudder,
and tremble before your power,
5 for your glorious splendor cannot be borne,
and the wrath of your threat to sinners is unendurable;
6 yet immeasurable and unsearchable
is your promised mercy,
7 for you are the Lord Most High,
of great compassion, long-suffering, and very merciful,
and you relent at human suffering.
O Lord, according to your great goodness
you have promised repentance and forgiveness
to those who have sinned against you,
and in the multitude of your mercies
you have appointed repentance for sinners,
so that they may be saved.[a]
8 Therefore you, O Lord, God of the righteous,
have not appointed repentance for the righteous,
for Abraham and Isaac and Jacob, who did not sin against you,
but you have appointed repentance for me, who am a sinner.
Confession of Sins
9 For the sins I have committed are more in number than the sand of the sea;
my transgressions are multiplied, O Lord, they are multiplied!
I am not worthy to look up and see the height of heaven
because of the multitude of my iniquities.
10 I am weighted down with many an iron fetter,
so that I am rejected[b] because of my sins,
and I have no relief;
for I have provoked your wrath
and have done what is evil in your sight,
setting up abominations and multiplying offenses.
Supplication for Pardon
11 And now I bend the knee of my heart,
imploring you for your kindness.
12 I have sinned, O Lord, I have sinned,
and I acknowledge my transgressions.
13 I earnestly implore you,
forgive me, O Lord, forgive me!
Do not destroy me with my transgressions!
Do not be angry with me forever or store up evil for me;
do not condemn me to the depths of the earth.
For you, O Lord, are the God of those who repent,
14 and in me you will manifest your goodness;
for, unworthy as I am, you will save me according to your great mercy,
15 and I will praise you continually all the days of my life.
For all the host of heaven sings your praise,
and yours is the glory forever. Amen.