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.

Galatians 3:21

{Is} the law then against the promises of God? God forbid: for if there had been a law given which could have given life, verily righteousness should have been by the law.

Hebrews 7:11

If therefore perfection were by the Levitical priesthood, (for under it the people received the law,) what further need {was there} that another priest should rise after the order of Melchisedec, and not be called after the order of Aaron?

1 Corinthians 15:14

And if Christ be not risen, then {is} our preaching vain, and your faith {is} also vain.

Galatians 5:2-4

Behold, I Paul say unto you, that if ye be circumcised, Christ shall profit you nothing.

Galatians 2:16

Knowing that a man is not justified by the works of the law, but by the faith of Jesus Christ, even we have believed in Jesus Christ, that we might be justified by the faith of Christ, and not by the works of the law: for by the works of the law shall no flesh be justified.

Romans 10:3

For they being ignorant of God's righteousness, and going about to establish their own righteousness, have not submitted themselves unto the righteousness of God.

Isaiah 49:4

Then I said, I have laboured in vain, I have spent my strength for nought, and in vain: {yet} surely my judgment {is} with the LORD, and my work with my God. {my work: or, my reward}