Because this is the proclamation where Washington declared Thanksgiving as a national holiday. The Thanksgiving Proclammation was declared on November 26, 1789
The National Thanksgiving Proclamation was the first formal declaration of thanksgiving day performed by President George Washington on November 26, 1789. The attitude that Washington took towards God in his proclamation was respectful, stating that all nations must acknowledge His providence and "..to obey his will, to be grateful for his benefits, and humbly to implore his protection and favor...".
Answer: because we are missing the exert, just look in the back half of the paragraph and see if he is having problem with himself or if he is struggling with something out of his control