'Swear' in the Bible

But I say unto you, Do not swear at all; neither by the heaven, because it is the throne of God;

Neither shalt thou swear by thy head, because thou canst not make one hair white or black.

Woe to you, blind guides, who say, Whosoever shall swear by the temple, it is nothing; but whosoever shall swear by the gold of the temple, he is a debtor.

And, Whosoever shall swear by the altar, it is nothing; but whosoever shall swear by the gift that is upon it is a debtor.

Then he began to curse and to swear, I know not the man. And immediately the cock crew.