For if you are trying to make yourselves right with God by keeping the law, you have been cut off from Christ! You have fallen away from God’s Grace.
Galatians 5:4 (NLT)

Look after each other so that none of you fails to receive the Grace of God. Watch out that no poisonous root of bitterness grows up to trouble you, corrupting many.
Hebrews 12:15 (NLT)

For by Grace you have been saved through faith. And this is not your own doing; it is the gift of God, not a result of works, so that no one may boast.
Ephesians 2:8-9 (ESV)