Genesis 17:1
                                                                The Sign of the Covenant
17:1 When Abram was 99 years old, the Lord appeared to him and said, “I am the sovereign God. Walk before me and be blameless.
                                                
Genesis 18:1
                                                                Three Special Visitors
18:1 The Lord appeared to Abraham by the oaks of Mamre while he was sitting at the entrance to his tent during the hottest time of the day.
                                                
Genesis 32:30
                                                                32:30 So Jacob named the place Peniel,
 explaining,
 “Certainly
 I have seen God face to face
 and have survived.”