Verses with the word feignest in the Old Testament (2 verses):

1 Kings 14:6
And it was so, when Ahijah heard the sound of her feet, as she came in at the door, that he said, Come in, thou wife of Jeroboam; why feignest thou thyself to be another? for I am sent to thee with heavy tidings.

Nehemiah 6:8
Then I sent unto him, saying, There are no such things done as thou sayest, but thou feignest them out of thine own heart.