'Unexpectedly' in the Bible

Let ruin come on him unexpectedly,and let the net that he hid ensnare him;let him fall into it—to his ruin.

But disaster will happen to you;you will not know how to avert it.And it will fall on you,but you will be unable to ward it off.Devastation will happen to you suddenlyand unexpectedly.

After Jesus was born in Bethlehem of Judea in the days of King Herod, wise men from the east arrived unexpectedly in Jerusalem,

“Be on your guard, so that your minds are not dulled from carousing, drunkenness, and worries of life, or that day will come on you unexpectedly