Passage
Be ye angry, and sin not: let not the sun go down upon your wrath:
Be ye angry, and sin not: let not the sun go down upon your wrath:
Ephesians 4:24 and put on the new man, that after God hath been created in righteousness and holiness of truth.
Ephesians 4:25 Wherefore, putting away falsehood, speak ye truth each one with his neighbor: for we are members one of another.
Ephesians 4:26 Be ye angry, and sin not: let not the sun go down upon your wrath:
Ephesians 4:27 neither give place to the devil.
Ephesians 4:28 Let him that stole steal no more: but rather let him labor, working with his hands the thing that is good, that he may have whereof to give to him that hath need.
The verse centers on "angry", "down", "upon", and "wrath". It is saying that the verse draws attention to "angry" and "down", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 25's "Wherefore putting away falsehood speak ye truth..." into verse 27's "neither give place to the devil...", so "angry" and "down" belong inside that flow. In Ephesians context, the local focus is grace, union with Christ, the church, and new creation.
A plain takeaway is to answer the verse's own emphasis on "angry" and "down" with trust shaped by these words, not by a vague optimism outside the passage.