'Swear' in the Bible

but I say unto you, swear not at all; neither by the heaven, for it is the throne of God;

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

Woe unto you, ye blind guides, that 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, he is a debtor.

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