In this verse 9.17 of Bhagwat Gita , God says the following:
It is I who am the Vedic ritual, I am the sacrifice, and I am the oblation offered to the ancestors. I am the medicinal herb, and I am the Vedic mantra. I am the clarified butter, I am the fire and the act of offering. Of this universe, I am the Father; I am also the Mother, the Sustainer, and the Grandsire. I am the purifier, the goal of knowledge, the sacred syllable Om. I am the Rig Veda, Sama Veda, and the Yajur Veda.
My question is: if Lord is the father and also the mother of this Universe ,which includes us, then why we look so different , speak so different , act so different?