Romans 11:6

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.

Deuteronomy 9:4-6

Speak not thou in thine heart, after that the LORD thy God hath cast them out from before thee, saying, For my righteousness the LORD hath brought me in to possess this land: but for the wickedness of these nations the LORD doth drive them out from before thee.

Romans 3:27-28

Where is boasting then? It is excluded. By what law? of works? Nay: but by the law of faith.

Romans 4:4-5

Now to him that worketh is the reward not reckoned of grace, but of 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 which was bestowed upon me was not in vain; but 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 frustrate the grace of God: for if righteousness come by the law, then Christ is dead in vain.

Galatians 5:4

Christ is become of no effect unto you, whosoever of you are justified by the law; ye are fallen from grace.

Ephesians 2:4-9

But God, who is rich in mercy, for his great love wherewith he loved us,

2 Timothy 1:9

Who hath saved us, and called us with an holy calling, not according to our works, but according to his own purpose and grace, which was given us in Christ Jesus before the world began,

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 Ghost;

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? Nay: but by the law of faith.
Romans 4:4
Now to him that worketh is the reward not reckoned of grace, but of 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
Speak not thou in thine heart, after that the LORD thy God hath cast them out from before thee, saying, For my righteousness the LORD hath brought me in to possess this land: but for the wickedness of these nations the LORD doth drive them out from before thee.
1 Corinthians 15:10
But by the grace of God I am what I am: and his grace which was bestowed upon me was not in vain; but 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 frustrate the grace of God: for if righteousness come by the law, then Christ is dead in vain.
Galatians 5:4
Christ is become of no effect unto you, whosoever of you are justified by the law; ye are fallen from grace.
Ephesians 2:4
But God, who is rich in mercy, for his great love wherewith he loved us,
2 Timothy 1:9
Who hath saved us, and called us with an holy calling, not according to our works, but according to his own purpose and grace, which was given us in Christ Jesus before the world began,
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 Ghost;

General references

Genesis 6:8
But Noah found grace in the eyes of the LORD.
Psalm 44:9
But thou hast cast off, and put us to shame; and goest not forth with our armies.
Isaiah 17:6
Yet gleaning grapes shall be left in it, as the shaking of an olive tree, two or three berries 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 saith the LORD, As the new wine is found in the cluster, and one saith, Destroy it not; for a blessing is in it: so will I do for my servants' sakes, that I may not destroy them all.
Lamentations 3:31
For the Lord will not cast off for ever:
Ezekiel 6:8
Yet will I leave a remnant, that ye may have some that shall escape the sword among the nations, when ye shall be scattered through the countries.
Acts 28:24
And some believed the things which were spoken, and some believed not.
Romans 4:4
Now to him that worketh is the reward not reckoned of grace, but of debt.
Ephesians 2:9
Not of works, lest any man should boast.

King James Version Public Domain