BG 15.17-19
The highest Energy is verily Another, declared as the Supreme Self, He who, pervading all, sustaineth the three worlds, the indestructible Lord. Since I excel the destructible, and am more excellent also than the indestructible, in the world and in the Veda I am proclaimed the Supreme Spirit. He who undeluded knoweth Me thus as the Supreme Spirit, he, all-knowing, worshippeth Me with his whole being, O Bhârata.