Romans 5:20

Now law was brought in so that transgression might abound; but where sin abounded, grace super-abounded;

Romans 6:1

What then shall we say? Shall we continue to abound in sin, in order that grace may come to abound?

Matthew 9:13

"But go and learn what this means, "It is mercy I desire, and not sacrifice; for I am come not to call just men, but sinners."

Luke 7:47

"This is why I tell you that her sins, many as they are, are forgiven, for her love is great; but he who is forgiven little, loves but little.

Luke 23:39-43

And one of the criminals who had been hung there kept reviling him, saying. "Are you not the Christ? Save yourself and us."

John 10:10

"The thief never comes except to steal and kill and destroy. I am come that they may have life, and may have it in abundance.

John 15:22

"If I had not come and spoken to them, they would have no sin; but now they have no excuse for their sin.

Romans 3:19-20

Now we know that whatever the Law says, it speaks to those who are under the Law; so that every mouth may be shut, and all the world may be brought under the judgment of God.

Romans 4:15

For law works wrath; but where there is no law, neither is there transgression.

Romans 6:14

For sin shall not lord it over you; for you are not under the rule of law, but under the rule of grace.

Romans 7:5-13

For while we were unspiritual, the sinful passions, aroused by the Law, were ever active in every part of our bodies, leading us to bear fruit unto death.

1 Corinthians 6:9-11

Do you not know that the wicked will not inherit the kingdom of God? Do not be deceived. None who are immoral, or idolaters, or adulterers, or catamites, or sodomites,

2 Corinthians 3:7-9

If, however, the administration of death, written with letters and engraved on stones, began in glory, so that the children of Israel could not gaze steadily on the face of Moses, because of the glory of his face?? glory even then fading??8 how much more shall the ministry of the Spirit abide in glory?

Galatians 3:19-25

To what purpose, then, was the Law? It was imposed later for the sake of transgressions, until the "Offspring" should come to whom the promise had been made. It was arranged through angels by the hand of a mediator.

Ephesians 1:6-8

and to the praise of his glorious grace which he graciously bestowed upon us in the Beloved.

Ephesians 2:1-5

And so God has given life to you Gentiles also, who were once dead in your trespasses and sins,

1 Timothy 1:13-16

although I had formerly been a blasphemer and a persecutor and a doer of outrage. But I obtained mercy because I acted ignorantly in unbelief.

Titus 3:3-7

For we were ourselves once foolish, disobedient, deceived, slaving for various lusts and pleasures, passing our lives in malice and envy. We were hateful, and we hated one another.

Treasury of Scripture Knowledge

Summary

Moreover the law entered, that the offence might abound. But where sin abounded, grace did much more abound:

General references

Bible References

But

Romans 6:1
What then shall we say? Shall we continue to abound in sin, in order that grace may come to abound?
Matthew 9:13
"But go and learn what this means, "It is mercy I desire, and not sacrifice; for I am come not to call just men, but sinners."
Luke 7:47
"This is why I tell you that her sins, many as they are, are forgiven, for her love is great; but he who is forgiven little, loves but little.
Luke 23:39
And one of the criminals who had been hung there kept reviling him, saying. "Are you not the Christ? Save yourself and us."
John 10:10
"The thief never comes except to steal and kill and destroy. I am come that they may have life, and may have it in abundance.
1 Corinthians 6:9
Do you not know that the wicked will not inherit the kingdom of God? Do not be deceived. None who are immoral, or idolaters, or adulterers, or catamites, or sodomites,
Ephesians 1:6
and to the praise of his glorious grace which he graciously bestowed upon us in the Beloved.
Ephesians 2:1
And so God has given life to you Gentiles also, who were once dead in your trespasses and sins,
1 Timothy 1:13
although I had formerly been a blasphemer and a persecutor and a doer of outrage. But I obtained mercy because I acted ignorantly in unbelief.
Titus 3:3
For we were ourselves once foolish, disobedient, deceived, slaving for various lusts and pleasures, passing our lives in malice and envy. We were hateful, and we hated one another.

General references

Matthew 19:30
"But many who are first shall be last, and many who are last shall be first.
Luke 15:1
Now all the tax-gatherers and sinners continued to draw near him, and to listen to him.
John 4:30
They left the city and set out to go to him.