Nearly a thousand of Rhonda LeRocque’s friends, family members and loved ones packed into Tewksbury Memorial High School yesterday to say goodbye to a loving wife, cherished mother and beloved daughter whose faith was the bedrock of her life.“People knew her as a fireball, because she talked to individuals about the God she loved so much,” said Larry Hubbard, the leader of LeRocque’s Jehovah’s Witnesses congregation.