Might as well say "Be ye perfect for your Father in Heaven is perfect."

"An Orthodox person is austere in his life, a monk in his household furnishings, in his labor, in his clothing, chaste in his senses and his thoughts. This is because he desires the Lord, loves his neighbor, has an open heart and an open mind to those of all religions and all ideologies though he holds strongly to his own belief. He denies himself. Here someone might hasten to ask, “Are these virtues not found in every Christian, even with every good person?” We answer: in Orthodoxy this spirit predominates. It is the inclination above all other inclination. The love of God dominates over the love of the world. The Orthodox person does not allow a worldly institution or even the law or the system to get a hold over him, to rule over him, to have exclusive power over him. A powerful inclination streams grace into his heart, ignites a fire in his heart." - Metropolitan Ephrem Kyriakos of Tripoli