Passage
Trust in the Lord for euer: for in the Lord God is strength for euermore.
Trust in the Lord for euer: for in the Lord God is strength for euermore.
Isaiah 26:2 Open ye the gates that the righteous nation, which keepeth the trueth, may enter in.
Isaiah 26:3 By an assured purpose wilt thou preserue perfite peace, because they trusted in thee.
Isaiah 26:4 Trust in the Lord for euer: for in the Lord God is strength for euermore.
Isaiah 26:5 For hee will bring downe them that dwell on hie: the hie citie he will abase: euen vnto the ground wil he cast it downe, and bring it vnto dust.
Isaiah 26:6 The foote shall treade it downe, euen the feete of the poore, and the steppes of the needie.
The verse centers on "trust", "lord", "euer", "strength", and "euermore". It is saying that the verse draws attention to "trust" and "lord", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 3's "By an assured purpose wilt thou preserue..." into verse 5's "For hee will bring downe them that...", so "trust" and "lord" belong inside that flow. In Isaiah context, the local focus is the Holy One of Israel, judgment and restoration, the servant of the LORD, and Zion's hope.
A plain takeaway is to answer the verse's own emphasis on "trust" and "lord" with trust shaped by these words, not by a vague optimism outside the passage.