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

Psalms 44:24
Wherefore hidest thou thy face, and forgettest our affliction and our oppression?

Isaiah 51:13
And forgettest the LORD thy maker, that hath stretched forth the heavens, and laid the foundations of the earth; and hast feared continually every day because of the fury of the oppressor, as if he were ready to destroy? and where is the fury of the oppressor?