Romans 11:6

And if by grace, then is it not by works; otherwise, the grace is no longer grace. But if it is of works, then it is no longer grace; otherwise, the work is no longer work.

Deuteronomy 9:4-6

Think not in thine heart, after the LORD thy God has cast them out from before thee, saying, Because of my righteousness the LORD has brought me in to inherit this land; rather for the wickedness of these Gentiles the LORD drives them out from before thee.

Romans 3:27-28

Where is boasting then? It is excluded. By what law? of works? No, but by the law of faith.

Romans 4:4-5

But unto him that works, the reward is not reckoned as grace, but as debt.

Romans 5:20-21

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

1 Corinthians 15:10

But by the grace of God I am what I am; and his grace towards me was not in vain, for I laboured more abundantly than they all, yet not I, but the grace of God which was with me.

Galatians 2:21

I do not reject the grace of God, for if righteousness comes by the law, then Christ is dead in vain.

Galatians 5:4

Ye are empty of the Christ, whosoever of you that justify yourselves by the law; ye are fallen from grace.

Ephesians 2:4-9

But God, who is rich in mercy, for his great charity with which he loved us,

2 Timothy 1:9

who has saved us and called us with a holy calling, not according to our works, but according to his own purpose and grace, which was given us in Christ Jesus before the times of the ages,

Titus 3:5

not by works of righteousness which we have done, but according to his mercy he saved us, by the washing of regeneration and renewing of the Holy Spirit,

Treasury of Scripture Knowledge

Summary

And if by grace, then is it no more of works: otherwise grace is no more grace. But if it be of works, then is it no more grace: otherwise work is no more work.

Bible References

And if

Romans 3:27
Where is boasting then? It is excluded. By what law? of works? No, but by the law of faith.
Romans 4:4
But unto him that works, the reward is not reckoned as grace, but as debt.
Romans 5:20
Moreover the law entered that the offence might abound. But where sin abounded, grace did much more abound,
Deuteronomy 9:4
Think not in thine heart, after the LORD thy God has cast them out from before thee, saying, Because of my righteousness the LORD has brought me in to inherit this land; rather for the wickedness of these Gentiles the LORD drives them out from before thee.
1 Corinthians 15:10
But by the grace of God I am what I am; and his grace towards me was not in vain, for I laboured more abundantly than they all, yet not I, but the grace of God which was with me.
Galatians 2:21
I do not reject the grace of God, for if righteousness comes by the law, then Christ is dead in vain.
Galatians 5:4
Ye are empty of the Christ, whosoever of you that justify yourselves by the law; ye are fallen from grace.
Ephesians 2:4
But God, who is rich in mercy, for his great charity with which he loved us,
2 Timothy 1:9
who has saved us and called us with a holy calling, not according to our works, but according to his own purpose and grace, which was given us in Christ Jesus before the times of the ages,
Titus 3:5
not by works of righteousness which we have done, but according to his mercy he saved us, by the washing of regeneration and renewing of the Holy Spirit,

General references

Genesis 6:8
But Noah found grace in the eyes of the LORD.
Psalm 44:9
But thou hast cast us off and put us to shame and doth not go forth with our armies.
Isaiah 17:6
Yet gleaning shall be left in it as when the olive tree is shaken; two or three berries are left in the top of the uppermost bough, four or five in the outmost fruitful branches thereof, saith the LORD God of Israel.
Isaiah 65:8
Thus has the LORD said, As when one has found new wine in a cluster and says, Do not destroy it; for a blessing is in it; so will I do for my slaves' sakes, that I may not destroy them all.
Lamentations 3:31
Caph For the Lord will not cast off for ever:
Ezekiel 6:8
Yet I will leave a remnant that ye may have some that shall escape the sword among the Gentiles when ye shall be scattered through the countries.
Acts 28:24
And some believed the things which were spoken, and some did not believe.
Romans 4:4
But unto him that works, the reward is not reckoned as grace, but as debt.
Ephesians 2:9
Not of works, lest any man should boast.