How to Use "whereof" with Example Sentences

1. In witness whereof , the parties hereto have executed this agr .
2. In witness whereof , company have executed this agreement on the date first above written , and senior executive also entered into this agreement .
3. In faith whereof the undersigned , being duly authorized thereto , have signed this protocol .
4. In witness whereof the undersigned , being duly authorized thereto , have signed this agreement .
5. Is there thing whereof it may be said , see , this new ?