Here is where many are
proving themselves to be reprobate in these forums. They say they are under grace, but yet they also say they sin every day. They by their own confession prove themselves not to be "in Christ" and reprobate .
Jesus Christ came
to set us free from sin, and to make us righteous as He is righteous by the power of His Spirit working in us. (note, not our own righteousness, but Christ's righteousness working in us) Grace does not reign in you
by sin, but Gods grace reigns in you through Christ's righteousness.
Romans 5:21
That as
sin hath
reigned unto death, even so might
grace reign through righteousness unto eternal life by Jesus Christ our Lord.
If your sinning,
then sin reigns over you, and not grace
through righteousness. Whosoever sins is of the Devil, and is a servant of sin, and not a servant
of righteousness.
If you are under grace, then sin shall not have dominion (reign) over you.
Romans 6:14
For sin shall not have dominion over you: for ye are not under the law,
but under grace.
So once again the proof of a true conversion and being born again "in Christ" is in the fruit it produces, whether of sin unto death, or of righteousness unto Eternal Life.
1 John 3:7
Little children,
let no man deceive you:
he that doeth righteousness is righteous,
even as he is righteous.