'By Grace' in the Bible

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.

even when we were dead through our trespasses, made us alive together with Christ (by grace you have been saved),

for by grace you have been saved through faith, and that not of yourselves; it is the gift of God,

Don't be carried away by various and strange teachings, for it is good that the heart be established by grace, not by food, through which those who were so occupied were not benefited.