כִּ֤י פַ֣חַד פָּ֭חַדְתִּי וַיֶּאֱתָיֵ֑נִי וַאֲשֶׁ֥ר יָ֝גֹ֗רְתִּי יָ֣בֹא לִֽי׃
For the thing which I did fear is come upon me, And that which I was afraid of hath overtaken me.
Rashi on Job
the thing I feared All my life, I stood in fear of this, as I said (1:5): “Now it would come about, when the cycle of the feasting would days be over, etc.”
Malbim on Job
Job had had a premonition, but despite all he had done to try and prevent the calamities when their pre-appointed time came, his very worst fears were fulfilled. There was no way he could escape his destiny.