We don't hear much about Jesus' childhood, except that time as a twelve-year-old boy where He stays in Jerusalem, unbeknownst to His family, in His Father's house, listening to the teachers, asking them questions, and answering questions.  This happened at Passover.  If we fast forward many years to Jesus' ministry, we see Him again celebrating the Passover, with His disciples, right before HE becomes the Passover Lamb for us, so that death will pass over us, and we will be given eternal life.