James 2:10

For a man who has laid the Law, as a whole, to heart, but has failed in one particular, is liable for breaking all its provisions.

Galatians 3:10

All who rely upon obedience to Law are under a curse, for Scripture says--'Cursed is every one who does not abide by all that is written in the Book of the Law, and do it.'

Matthew 5:18-19

For I tell you, until the heavens and the earth disappear, not even the smallest letter, nor one stroke of a letter, shall disappear from the Law until all is done.

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 I tell you, until the heavens and the earth disappear, not even the smallest letter, nor one stroke of a letter, shall disappear from the Law until all is done.
Galatians 3:10
All who rely upon obedience to Law are under a curse, for Scripture says--'Cursed is every one who does not abide by all that is written in the Book of the Law, and do it.'