James 5:9; James 5:12

9 Grudge not one against another, brethren, lest ye be condemned: behold, the judge standeth before the door.

12 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.