ISB ~ John 8 v58

before Abraham was, I am:Jesus takes for himself the divine name of Yahweh, “I am” (Ex 3:14). He thus claims to be one with God (10:30), whose life in eternity has neither beginning nor end. The Pharisees hear this claim loud and clear and, thinking it outrageous, stand ready to stone him for blasphemy (8:59; Lev 24:16) (CCC 590). See notes on Jn 1:1 and 6:20.