Passage
Concerning thy testimonies, I have known of old that thou hast founded them for ever.
Concerning thy testimonies, I have known of old that thou hast founded them for ever.
Psalms 119:150 They draw nigh that follow after mischief: they are far from thy law.
Psalms 119:151 Thou art near, O LORD; and all thy commandments are truth.
Psalms 119:152 Concerning thy testimonies, I have known of old that thou hast founded them for ever.
Psalms 119:153 Consider mine affliction, and deliver me: for I do not forget thy law.
Psalms 119:154 Plead my cause, and deliver me: quicken me according to thy word.
The verse centers on "concerning", "testimonies", "known", "thou", "hast", "founded", and "ever". It is saying that the verse draws attention to "concerning" and "testimonies", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 151's "Thou art near O LORD and all..." into verse 153's "Consider mine affliction and deliver me for...", so "concerning" and "testimonies" 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 "concerning" and "testimonies" with trust shaped by these words, not by a vague optimism outside the passage.