Passage
The preparations of the heart in man, and the answer of the tongue, is from the LORD.
The preparations of the heart in man, and the answer of the tongue, is from the LORD.
Proverbs 16:1 The preparations of the heart in man, and the answer of the tongue, is from the LORD.
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.
The verse centers on "preparations", "heart", "answer", "tongue", and "lord". It is saying that the verse draws attention to "preparations" and "heart", so its meaning should be read from those terms before moving to application.
The next verse adds "All the ways of a man are...", so "preparations" and "heart" should be read forward into that movement. In Proverbs context, the local focus is covenant, worship, and faithfulness.
A plain takeaway is to answer the verse's own emphasis on "preparations" and "heart" with trust shaped by these words, not by a vague optimism outside the passage.