Kebra Nagast 105
2And Abraham said, "Wilt Thou in my days, O Lord, cast Thy word upon the ground?"
3And God said unto him, "By no means.
4His time hath not yet come, but I will shew thee a similitude of His coming.
5Get thee over the Jordan, and dip thyself in the water as thou goest over, and arrive at the city of Salem, where thou shalt meet Melchizedek, and I will command him to show thee the sign and similitude of Him."
8See how he rejoiced in his belief, and see how he was justified by his belief, O blind Jew, who though having eyes seest not, and having ears hearest not, even as the Prophet Isaiah saith concerning you, "Their eyes are blind, and their hearts are covered with darkness, so that they may not understand and God may not show compassion unto them."