“But above all things, my brethren, swear not, neither by heaven, neither by the earth, neither by any other oath: but let your yea be yea; and your nay, nay; lest ye fall into condemnation.” James 5:12

God is not against us making an oath. He is against the premise that if we don’t say something under oath that we therefore don’t have to keep our word. When we speak it should be as if we are always under an oath.