Numbers 22:26

ויוסף מלאך ה' עובר AND THE ANGEL OF THE LORD WENT FURTHER — went further in front of him — it went on so as to be before him in another spot. It is similar to, (Genesis 33:3) “And he passed in front of them”. — And there is a Midrashic explanation in Tanchuma: What reason had he to stand in three places? He (the Angel) showed him (Balaam) symbols referring to the three patriarchs (Midrash Tanchuma, Balak 8).

וַיּ֥וֹסֶף מַלְאַךְ־יְהֹוָ֖ה עֲב֑וֹר וַֽיַּעֲמֹד֙ בְּמָק֣וֹם צָ֔ר אֲשֶׁ֛ר אֵֽין־דֶּ֥רֶךְ לִנְט֖וֹת יָמִ֥ין וּשְׂמֹֽאול׃

And the angel of the Lord went further, and stood in a narrow place, where was no way to turn either to the right hand or to the left.