It's also the question that is being answered throughout the season of Epiphany. An epiphany is a revelation. It's all about turning the lights on so we understand something. In this case it's all about answering the question, "Who is Jesus?" The season of Epiphany runs from the end of Christmas to the beginning of Lent. It begins with the festival of the Epiphany of Our Lord where we meet the magi. God has turned the lights on for them and so they travel hundreds of miles to kneel before the Christ child. The season ends with the Transfiguration of Our Lord where Peter, James and John will witness Jesus transfigured on a mountaintop and hear God the Father say, "This is My beloved son. Listen to him."
From beginning to end we'll meet Jesus turning water into wine, walking on the water and doing all sorts of other crazy stuff. Stuff that will make us ask, "Who is Jesus?" Stuff that will show us that he really is the Son of God who came to die for your sins.