'Swear' in the Bible

So now, swear to me here by God [that] you will not deal with me falsely, or with my descendants, or my posterity. According to the kindness that I have done to you, you shall [pledge] to do with me and with the land where you have dwelled as an alien."

And Abraham said, "I swear."

And he said, "I swear by myself, declares Yahweh, that because you have done this thing and have not withheld your son, your only child,

that I may make you swear by Yahweh, the God of heaven and the God of earth, that you will not take a wife for my son from the daughters of the Canaanites in whose midst I am dwelling,

And my master made me swear, saying, 'Do not take a wife for my son from the daughters of the Canaanites in whose land I am living.

Then Jacob said, "Swear to me {first}." And he swore to him, and sold his birthright to Jacob.

Then he said, "Swear to me." And he swore to him. Then Israel bowed himself on the head of the bed.

'My father made me swear, saying, "Behold, I [am about] to die. In the tomb that I have hewed out for myself in the land of Canaan--there you must bury me." So then, please let me go up and let me bury my father; then I will return.'"

Then Pharaoh said, "Go up and bury your father as he made you swear."

Then Joseph made the sons of Israel swear an oath, saying, "God will surely visit you, and you shall bring up my bones from here."