Bhagavad Gita 10.33
अक्षराणामकारोऽस्मि द्वन्द्वः सामासिकस्य च।
अहमेवाक्षयः कालो धाताऽहं विश्वतोमुखः।।10.33।।
Aksharanamakarosmi dvandvah samasikasya cha
Ahamevakshayah kalo dhataham vishvatomukhah
Simple meaning, written by AII am the first among the indestructible (the letter A), the duality and the composite; I alone am the endless time, the support, and the face of the whole universe.