The purposes of the heart are of man, but the answer of the tongue is from Jehovah.
References for Proverbs 16:1
All the ways of a man are clean in his own eyes; but Jehovah weigheth the spirits.
Commit thy works unto Jehovah, and thy thoughts shall be established.
References for Proverbs 16:3
Jehovah hath wrought everything on his own account, yea, even the wicked for the day of evil.
References for Proverbs 16:4
Every proud heart is an abomination to Jehovah: hand for hand, he shall not be held innocent.
References for Proverbs 16:5
By loving-kindness and truth iniquity is atoned for; and by the fear of Jehovah [men] depart from evil.