Send one of you, and let him fetch your brother, and ye shall be bound, that your words may be proved, whether there be truth in you: or else by the life of Pharaoh surely ye are spies.
and bring your youngest brother unto me: then shall I know that ye are no spies, but that ye are true men: so will I deliver you your brother, and ye shall traffick in the land.
And Joseph saw his brethren, and he knew them, but made himself strange unto them, and spake roughly with them; and he said unto them, Whence come ye? And they said, From the land of Canaan to buy food.
How can I pardon thee? thy children have forsaken me, and sworn by them that are no gods: when I had fed them to the full, they committed adultery, and assembled themselves in troops at the harlots' houses.
But above all things, my brethren, swear not, neither by the heaven, nor by the earth, nor by any other oath: but let your yea be yea, and your nay, nay; that ye fall not under judgement.
And when Saul saw David go forth against the Philistine, he said unto Abner, the captain of the host, Abner, whose son is this youth? And Abner said, As thy soul liveth, O king, I cannot tell.
And David sware moreover, and said, Thy father knoweth well that I have found grace in thine eyes; and he saith, Let not Jonathan know this, lest he be grieved: but truly as the LORD liveth, and as thy soul liveth, there is but a step between me and death.