Passage
May the Lord hear thee in the day of tribulation: may the name of the God of Jacob protect thee.
May the Lord hear thee in the day of tribulation: may the name of the God of Jacob protect thee.
Psalms 19:1 Unto the end. A psalm for David.
Psalms 19:2 May the Lord hear thee in the day of tribulation: may the name of the God of Jacob protect thee.
Psalms 19:3 May he send thee help from the sanctuary: and defend thee out of Sion.
Psalms 19:4 May he be mindful of all thy sacrifices: and may thy whole burntoffering be made fat.
The verse centers on "lord", "hear", "thee", "tribulation", "name", "jacob", and "protect". It is saying that the verse draws attention to "lord" and "hear", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 1's "Unto the end A psalm for David..." into verse 3's "May he send thee help from the...", so "lord" and "hear" 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 "lord" and "hear" with trust shaped by these words, not by a vague optimism outside the passage.