Another interpretation: "In the morning he shall devour the prey" (Genesis 49:27) - this refers to Jericho, which ripens its fruits early. "And at evening he shall divide the spoil" - this refers to Beth El, which is late in bringing forth its fruits.
Benjamin the Wolf Who Eats Jericho at Dawn and Bethel at Dusk
Yalkut Shimoni on Torah 161:3
דָּבָר אַחֵר, בַּבֹּקֶר יֹאכַל עַד, זוֹ יְרִיחוֹ שֶׁהִיא מִתְבַּכֶּרֶת בְּפֵרוֹתֶיהָ וְלָעֶרֶב יְחַלֵּק שָׁלָל, זוֹ בֵּית אֵל שֶׁהִיא מְלַקֶּשֶׁת בְּפֵרוֹתֶיהָ