President Donald Trump, January 20, 2017

“I do solemnly swear (or affirm) that I will faithfully execute
the office of President of the United States,
and will to the best of my ability, preserve, protect and defend
the Constitution of the United States.”

Numbers 30:2

“If a man vows a vow to the Lord, or swears an oath to bind himself by a pledge, he shall not break his word. He shall do according to
all that proceeds out of his mouth.”