Oath or affirmation
If an officer is willing to “swear out a warrant” they must pledge that the person/place/thing in question is what/where they say it is, and acknowledge they are telling the truth, under the penalty of the law. It prevents frivolous warrants and helps keep law enforcement away from being stuck serving warrants all day and all night long. An affirmation is the same but religion neutral so those who do not have a religion or are not Christian will not have to swear on the bible.
To help improve the meaning of these lyrics, visit “The U.S. Constitution (Bill Of Rights)” by United States Congress (Ft. James Madison & Thomas Jefferson) and leave a comment on the lyrics box