Rom. 11:5, 6 Even so then, at this present time there is a remnant according to the election of grace. And if by grace, then it is no longer of works; otherwise grace is no longer grace. But if it is of works, it is no longer grace; otherwise work is no longer work.
The Book of Romans has more to say about grace in its application and effect than perhaps any other book. Once we’ve received or walk in grace can it be nullified?
Based on what Paul writes here it appears the only thing that nullifies grace (God’s enabling power, providing opportunities) is working things out in our flesh/works of ourselves. Where we attempt to manipulate and curry favor on the basis of having “earned”/”worked” for what we feel entitled/deserving to or of.
The context of this admonition is that of relationships, specifically between believing Jews and Gentiles. Grace provides equity at the foot of the cross. It isn’t based on ethnicity or any other work or right, the work for the right of grace was accomplished at the cross.
Two other things Paul gives in Romans that nullifies grace is pride (Rom. 12:3ff) about our gifting, calling or position that would cause one to feel superior to another in the Body of Christ.
The other is that of rebellion (Rom. 13:1ff), which not only undermines grace but opens the door to judgment by the Lord. The arenas of application deal with the natural family, spiritual families (churches/congregations) but civil governments as well.
The United States is precariously close to the judgment of God coming as a result of having snubbed God in dealings with abortion & LGBTQ, along with other issues of dissing God values. It’s time for all believers to walk in His grace across this nation.
Stand and trust His grace, not our works!