What are the duties required in the ninth commandment?

The duties required in the ninth commandment are, the preserving and promoting of truth between man and man, and the good name of our neighbor, as well as our own; appearing and standing for the truth; and from the heart, sincerely, freely, clearly, and fully, speaking the truth, and only the truth, in matters of judgment and justice, and in all other things whatsoever; a charitable esteem of our neighbors; loving, desiring, and rejoicing in their good name; sorrowing for, and covering of their infirmities; freely acknowledging of their gifts and graces, defending their innocency; a ready receiving of a good report, and unwillingness to admit of an evil report, concerning them; discouraging talebearers, flatterers, and slanderers; love and care of our own good name, and defending it when need requireth; keeping of lawful promises; studying and practicing of whatsoever things are true, honest, lovely, and of good report.

Proofs

• The duties required in the ninth commandment are, the preserving and promoting of truth between man and man, (Zechariah 8:16)
• and the good name of our neighbor, as well as our own; (3 John 12)
• appearing and standing for the truth; (Proverbs 31:8–9)
• and from the heart, (Psalm 15:2)
• sincerely, (2 Chronicles 19:9)
• freely, (1 Samuel 19:4–5)
• clearly, (Joshua 7:19)
• and fully, (2 Samuel 14:18–20)
• speaking the truth, and only the truth, in matters of judgment and justice, (Leviticus 19:15)
• and in all other things whatsoever; (2 Corinthians 1:17–18; Ephesians 4:25)
• a charitable esteem of our neighbors; (Hebrews 6:9; 1 Corinthians 13:7)
• loving, desiring, and rejoicing in their good name; (Romans 1:8; 2 John 4; 3 John 3–4)
• sorrowing for, (2 Corinthians 2:4; 12:21)
• and covering of their infirmities; (Proverbs 17:9; 1 Peter 4:8)
• freely acknowledging of their gifts and graces, (1 Corinthians 1:4–5, 7; 2 Timothy 1:4–5)
• defending their innocency; (1 Samuel 22:14)
• a ready receiving of a good report, (1 Corinthians 13:6–7)
• and unwillingness to admit of an evil report, (Psalm 15:3)
• concerning them; discouraging talebearers, (Proverbs 25:23)
• flatterers, (Proverbs 26:24–25)
• and slanderers; (Psalm 101:5)
• love and care of our own good name, and defending it when need requireth; (Proverbs 22)
• keeping of lawful promises; (Psalm 15:4)
• studying and practicing of whatsoever things are true, honest, lovely, and of good report. (Philippians 4:8)