This is based on God's self-identification in Exodus 3:14, "I am who I am," or, "I will be who I will be."
Ngakho-ke, incazelo yegama elithi Jehova ayisho nje kuphela isenzo esihlobana nalo esitholakala ku-Eksodusi 3:14, othi: "Ngiyoba Yilokho Engikhetha Ukuba Yikho" noma "Ngiyoba Yilokho Engiyoba Yikho."