Verses with the word oft in the Old Testament (3 verses):

2 Kings 4:8
And it fell on a day, that Elisha passed to Shunem, where was a great woman; and she constrained him to eat bread. And so it was, that as oft as he passed by, he turned in thither to eat bread.

Job 21:17
How oft is the candle of the wicked put out! and how oft cometh their destruction upon them! God distributeth sorrows in his anger.

Psalms 78:40
How oft did they provoke him in the wilderness, and grieve him in the desert!