'Myself' in the Bible

The man said, "I heard your voice in the garden, and I was afraid, because I was naked; and I hid myself."

Abraham answered, "See now, I have taken it on myself to speak to the Lord, who am but dust and ashes.

He said, "See now, I have taken it on myself to speak to the Lord. What if there are twenty found there?" He said, "I will not destroy it for the twenty's sake."

and said, "I have sworn by myself, says Yahweh, because you have done this thing, and have not withheld your son, your only son,

What if my father touches me? I will seem to him as a deceiver, and I would bring a curse on myself, and not a blessing."

My father made me swear, saying, "Behold, I am dying. Bury me in my grave which I have dug for myself in the land of Canaan." Now therefore, please let me go up and bury my father, and I will come again.'"