Passage
Evening, and morning, and at noon, will I pray and moan aloud; and he will hear my voice.
Evening, and morning, and at noon, will I pray and moan aloud; and he will hear my voice.
Psalms 55:15 Let death seize upon them, let them go down alive into Sheol. For wickedness is in their dwellings, in their midst.
Psalms 55:16 As for me, unto God will I call; and Jehovah will save me.
Psalms 55:17 Evening, and morning, and at noon, will I pray and moan aloud; and he will hear my voice.
Psalms 55:18 He hath redeemed my soul in peace from the battle against me: for there were many about me.
Psalms 55:19 God will hear, and afflict them: he that is seated of old, (Selah) because there is no change in them, and they fear not God.
The verse centers on "evening", "morning", "noon", "pray", "moan", "aloud", "hear", and "voice". It is saying that the verse draws attention to "evening" and "morning", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 16's "As for me unto God will I..." into verse 18's "He hath redeemed my soul in peace...", so "evening" and "morning" belong inside that flow. In Psalms context, the local focus is worship, trust, the LORD's kingship, and covenant mercy.
A plain takeaway is to answer the verse's own emphasis on "evening" and "morning" with trust shaped by these words, not by a vague optimism outside the passage.