Passage
The LORD hath made all things for himself: yea, even the wicked for the day of evil.
Proverbs 16:4 (KJV)
Nearby Context
Proverbs 16:2 All the ways of a man are clean in his own eyes; but the LORD weigheth the spirits.
Proverbs 16:3 Commit thy works unto the LORD, and thy thoughts shall be established.
Proverbs 16:4 The LORD hath made all things for himself: yea, even the wicked for the day of evil.
Proverbs 16:5 Every one that is proud in heart is an abomination to the LORD: though hand join in hand, he shall not be unpunished.
Proverbs 16:6 By mercy and truth iniquity is purged: and by the fear of the LORD men depart from evil.
Study Lenses
The verse centers on "all things", "lord", "hath", "himself", "even", "wicked", and "evil". It is saying that the verse draws attention to "all things" and "lord", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 3's "Commit thy works unto the LORD and..." into verse 5's "Every one that is proud in heart...", so "all things" and "lord" belong inside that flow. In Proverbs context, the local focus is covenant, worship, and faithfulness.
A plain takeaway is to answer the verse's own emphasis on "all things" and "lord" with trust shaped by these words, not by a vague optimism outside the passage.