Nonsense. God's grace and commandments go hand in hand, it is sin that is the problem.
Exodus 20:6
And shewing
mercy unto thousands of them that love me,
and keep my commandments.
The law is spoken of as just, good, holy, true, but you will not hear that about
sin.
Romans 7:7
What shall we say then? Is the
law sin? God forbid. Nay, I had not known
sin,
but by the law: for I had not known lust, except the
law had said, Thou shalt not covet.