Radak

For not for ever snail the needy be forgotten: – If Israel should continue in trouble because of the Philistines, this will not be for any length of time. Nor the expectation of the poor perish for ever: – Not is actually written once only, but is understood twice; and such is the usage of the language in many passages. ענוים (meek), the Kethib has waw, but the Keri is עניים with yodh; and the meanings are cognate, for the poor are generally the meek.