C. F. Keil and Franz Delitzsch on Proverbs 10:28

Pro 10:28 28 The expectation of the righteous is gladness      And the hope of the godless comes to nothing. תּוחלת as well as תּקוה proceed on the fundamental idea of a strained earnest looking back upon something, the same fundamental idea which in another view gives the meaning of strength (חיל, Arab. ḥayl; ḳuwwat, kawiyy, cf. גּדל, Arab. jdl, plectere, and גּדול, strong and strength). The substantival clause 28a denotes nothing more than: it is gladness (cf. Pro 3:17, all their steps are gladness), but which is equivalent to, it is that in its issue, in gaudium desinit. Hitzig’s remark that תוחלת is the chief idea for hope and fear, is not confirmed by the usage of the language; it always signifies joyful, not anxious, expectation; cf. the interchange of the same two synonyms Pro 13:7, and תּאות, Psa 112:10, instead of תּקות (here and Job 8:13). While the expectation of the one terminates in the joy of the fulfilment, the hope of the other (אבד, R. בד, to separate) perishes, i.e., comes to nothing.