James 2:10

For whoever shall keep the whole law, and yet fail in one, is an offender against all.

Galatians 3:10

For as many as are of the works of the law are under the curse: for it is written, Cursed is every one that does not continue in all things written in the book of the law to do them.

Matthew 5:18-19

For verily I say to you, Till heaven and earth pass away, one yod or one point shall in no way pass from the law till all be fulfilled.

Treasury of Scripture Knowledge

Summary

For whosoever shall keep the whole law, and yet offend in one point, he is guilty of all.

Bible References

Whosoever

Matthew 5:18
For verily I say to you, Till heaven and earth pass away, one yod or one point shall in no way pass from the law till all be fulfilled.
Galatians 3:10
For as many as are of the works of the law are under the curse: for it is written, Cursed is every one that does not continue in all things written in the book of the law to do them.