When Abram was ninety-nine years old, the LORD appeared to him and said, “I am God Almighty. Walk before Me and be blameless.
Jewish Publication Society of America Version (JPS1917) - Genesis 17:1 >And when Abram was ninety years old and nine, the LORD appeared to Abram, and said unto him: 'I am God Almighty; walk before Me, and be thou wholehearted.