'Here I Am' in the Bible

Again he says, "I will be confident in him," and again, "Here I am, with the children God has given me."

"Then I said, 'Here I am: I have come -- it is written of me in the scroll of the book -- to do your will, O God.'"

then he says, "Here I am: I have come to do your will." He does away with the first to establish the second.