וְ֭אֵלֶּה צָפַ֣נְתָּ בִלְבָבֶ֑ךָ יָ֝דַ֗עְתִּי כִּי־זֹ֥את עִמָּֽךְ׃
Rashi on Job
But You hid these in Your heart to destroy me as though You did not remember them, but...
Malbim on Job
Though all that would happen. (The iniquities and sins referred to in verse 6).
Rashi on Job
I knew that this was with You, everything as it was delineated, and You did not forget.