We ought to come to the Lamb of God and learn that He forgives all our sins through contrite repentance. Here is a Christian hymn from the Trinity Hymnal and it is about the Lamb of God who takes away the sin of the world of His people.
Just as I am, without one plea
But that thy blood was shed for me,
And that thou bidd'st me come to thee,
O Lamb of God, I come, I come.
Just as I am, and waiting not
To rid my soul of one dark blot,
To thee, whose blood can cleanse each spot,
O Lamb of God, I come, I come.
Just as I am, though tossed about
With many a conflict, many a doubt,
Fightings and fears within, without,
O Lamb of God, I come, I come.
Just as I am, poor, wretched, blind;
Sight, riches, healing of the mind,
Yea, all I need, in thee to find,
O Lamb of God, I come, I come.
Just as I am! thou wilt receive,
Wilt welcome, pardon, cleanse, relieve;
Because thy promise I believe,
O Lamb of God, I come, I come.
Just as I am! thy love unknown
Has broken ev'ry barrier down;
Now, to be thine, yea, thine alone,
O Lamb of God, I come, I come.
But that thy blood was shed for me,
And that thou bidd'st me come to thee,
O Lamb of God, I come, I come.
Just as I am, and waiting not
To rid my soul of one dark blot,
To thee, whose blood can cleanse each spot,
O Lamb of God, I come, I come.
Just as I am, though tossed about
With many a conflict, many a doubt,
Fightings and fears within, without,
O Lamb of God, I come, I come.
Just as I am, poor, wretched, blind;
Sight, riches, healing of the mind,
Yea, all I need, in thee to find,
O Lamb of God, I come, I come.
Just as I am! thou wilt receive,
Wilt welcome, pardon, cleanse, relieve;
Because thy promise I believe,
O Lamb of God, I come, I come.
Just as I am! thy love unknown
Has broken ev'ry barrier down;
Now, to be thine, yea, thine alone,
O Lamb of God, I come, I come.