'Oath' in the Bible

When you take an oath before God, put it quickly into effect, because he has no pleasure in the foolish; keep the oath you have taken.

It is better not to take an oath than to take an oath and not keep it.

I counsel thee to keep the king's commandment, and that in regard of the oath of God.

All things come alike to all: there is one event to the righteous, and to the wicked; to the good and to the clean, and to the unclean; to him that sacrificeth, and to him that sacrificeth not: as is the good, so is the sinner; and he that sweareth, as he that feareth an oath.