Passage
And the words of my mouth shall be such as may please: and the meditation of my heart always in thy sight. O Lord, my helper and my Redeemer.
And the words of my mouth shall be such as may please: and the meditation of my heart always in thy sight. O Lord, my helper and my Redeemer.
Psalms 18:13 Who can understand sins? from my secret ones cleanse me, O Lord:
Psalms 18:14 And from those of others spare thy servant. If they shall have no dominion over me, then shall I be without spot: and I shall be cleansed from the greatest sin.
Psalms 18:15 And the words of my mouth shall be such as may please: and the meditation of my heart always in thy sight. O Lord, my helper and my Redeemer.
The verse centers on "words", "mouth", "shall", "such", "please", "meditation", "heart", and "always". It is saying that the verse draws attention to "words" and "mouth", so its meaning should be read from those terms before moving to application.
The prior verse says "And from those of others spare thy...", giving immediate footing for "words" and "mouth". 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 "words" and "mouth" with trust shaped by these words, not by a vague optimism outside the passage.