פירוש על ישעיהו 64:6

arouses himself Like ‘overpowers his temptation.’

מתעורר That stirreth up himself. It is an adjective.¹⁷Such a contraction is usually indicated by a Dagesh in the letter next to the one omitted; here the ב should have a Dagesh (וַנַּבֶּל Hiphil of נבל). The form can, however, be considered as regular if derived from בול; verbs פ״נ and ע״ו interchange sometimes; comp. סוך and נסך to anoint.

and You caused us to wander Heb. וַתְּמוּגֵנוּ, You caused us to wander.