Psalms 25:3

“Yea, let none that wait on thee be ashamed, etc.] David not only prays for himself, but for other saints, as it becomes the people of God to do; for them they waited on the Lord in public worship, attended his house and ordinances, and waited on him for the discoveries of his love, the enjoyment of his voracious presence, and were looking for his salvation, for the Messiah; for those the psalmist prays, that they might not be ashamed of their expectation and hope, by the delay of those things, or the denial them; let them be ashamed which transgress without cause; or “act treacherously without cause” f390; as David’s subjects did, who were risen up in rebellion against him, and acted the…”

“The prayer generalized as to all who wait on God--that is, who expect His favor. On the other hand, the disappointment of the perfidious, who, unprovoked, have done evil, is invoked (compare Sa2 22:9).”

“Cause - Without any provocation of mine. Psalms 25:4”

“wait: Psa 27:14, Psa 33:20, Psa 37:34, Psa 40:1-3, Psa 62:1, Psa 62:5, Psa 123:2; Gen 49:13; Isa 25:9; Isa 40:31; Lam 3:25; Mic 7:7; Rom 8:25 be ashamed: Psa 69:6 let: Psa 6:10, Psa 31:17, Psa 35:26, Psa 40:14, Psa 40:15, Psa 70:2, Psa 70:3, Psa 71:13, Psa 132:18; Jer 20:11 without: Psa 7:4, Psa 7:5, Psa 59:2-5, Psa 69:4, Psa 109:3, Psa 119:78; Joh 15:25 Psalms 25:4”

“That wherewith the praying one comforts himself is no peculiar personal prerogative, but the certain, joyous prospect of all believers: ἡ ἐλπίς ου ̓ καταισχύνει, Rom 5:5. These are called קויך (קוה participle to קוּה ot elp, just as דּבר is the participle to דּבּר). Hope is the eye of faith which looks forth clear and fixedly into the future. With those who hope in Jahve, who do not allow themselves to be in any way disconcerted respecting Him, are contrasted those who act treacherously towards Him ( Psa 119:158, Aq., Symm., Theodot. οἱ ἀποστατοῦντες), and that ריקם, i.e. - and it can only mean this-from vain and worthless pretexts, and therefore from wanton unconscientiousness.…”