Kommentar zu Jechezkiel 14:1

Now there came to me some men Heb. וַיָבוֹא. All of them with one accord for evil. Therefore, it is said: וַיָבוֹא, and came [the singular form]. The Midrash Aggadah says that [the word is in the singular] because the Holy One, blessed be He, revealed to the ear of the prophet beforehand, “Behold so-and- so and so-and-so will come to you.”