'Here Am I' in the Bible

After these deeds, God did prove Abraham and said unto him, "Abraham." And he answered, "Here am I."

Then spake Isaac unto Abraham his father and said, "My father?" And he answered, "Here am I, my son." And he said, "See, here is fire and wood, but where is the sheep for sacrifice?"

Then the angel of the LORD called unto him from heaven saying, "Abraham, Abraham?" And he answered, "Here am I."

And it came to pass that Isaac waxed old and his eyes were dim, so that he could not see. Then called he Esau, his eldest son, and said unto him, "My son." And he said unto him, "Here am I."

And he went in to his father saying, "My father." And he answered, "Here am I, who art thou my son?"

And the angel of God spake unto me in a dream saying, 'Jacob?' And I answered, 'Here am I.'

and Israel said unto Joseph, "Do not thy brethren keep in Shechem? Come, that I may send thee to them." And he answered, "Here am I."

And God said unto Israel in a vision by night, and called unto him, "Jacob, Jacob." And he answered, "Here am I."