וַיִּסְע֖וּ מֵאֹבֹ֑ת וַֽיַּחֲנ֞וּ בְּעִיֵּ֣י הָֽעֲבָרִ֗ים בַּמִּדְבָּר֙ אֲשֶׁר֙ עַל־פְּנֵ֣י מוֹאָ֔ב מִמִּזְרַ֖ח הַשָּֽׁמֶשׁ׃
And they journeyed from Oboth, and pitched at Ije-abarim, in the wilderness which is in front of Moab, toward the sun-rising.
Read kabbalistic (mystical) interpretation of Numbers 21:11: and classical mystical sources.