Answer: The sins forbidden in the Ninth Commandment are, all prejudicing the truth, and the good name of our neighbors, as well as our own, especially in public judicature; giving false evidence, suborning false witnesses, wittingly appearing and pleading for an evil cause, outfacing and overbearing the truth; passing unjust sentence, calling evil good, and good evil; rewarding the wicked according to the work of the righteous, and the righteous according to the work of the wicked; forgery, concealing the truth, undue silence in a just cause, and holding our peace when iniquity calls for either a reproof from ourselves, or complaint to others; speaking the truth unseasonably, or maliciously to a wrong end, or perverting it to a wrong meaning, or in doubtful and equivocal expressions, to the prejudice of truth or justice;speaking untruth, lying, slandering, backbiting, detracting, tale bearing, whispering, scoffing, reviling, rash, harsh, and partial censuring; misconstructing intentions, words, and actions; flattering, vainglorious boasting, thinking or speaking too highly or too meanly of ourselves or others; denying the gifts and graces of God; aggravating smaller faults;hiding, excusing, or extenuating of sins, when called to a free confession;unnecessary discovering of infirmities; raising false rumors, receiving and countenancing evil reports, and stopping our ears against just defense; evil suspicion; envying or grieving at the deserved credit of any, endeavoring or desiring to impair it, rejoicing in their disgrace and infamy; scornful contempt, fond admiration; breach of lawful promises; neglecting such things as are of good report, and practicing, or not avoiding ourselves, or not hindering: What we can in others, such things as procure an ill name.

1. ¹1 Sam 17:28; 2 Sam 16:3; 1:9–10, 15–16; ²Lev 19:15; Hab 1:4; ³Prov 19:5; 6:16, 19; ⁴Acts 6:13; ⁵Jer 9:3, 5; Acts 24:2, 5; Ps 12:3–4; 52:1–4; ⁶Prov 17:15; 1 Kgs 21:9–14; ⁷Isa 5:23; ⁸Ps 119:69; Lk 19:8; 16:5–7; ⁹Lev 5:1; Dt 13:8; Acts 5:3, 8–9; 2 Tim 4:16; ¹⁰1 Kgs 1:6; Lev 19:17; ¹¹Isa 59:4; ¹²Prov 29:11; ¹³1 Sam 22:9–10; cf. Ps 52:1–5; ¹⁴Ps 56:5; Jn 2:19; cf. Mt 26:60–61; ¹⁵Gen 3:5; 26:7, 9; ¹⁶Isa 59:13; ¹⁷Lev 19:11; Col 3:9; ¹⁸Ps 50:20; ¹⁹Ps 15:3; ²⁰Jas 4:11; Jer 38:4; ²¹Lev 19:16; ²²Rom 1:29–30; ²³Gen 21:9; cf. Gal 4:29; ²⁴1 Cor 6:10; ²⁵Mt 7:1; ²⁶Acts 28:4; ²⁷Gen 38:24; Rom 2:1; ²⁸Neh 6:6–8; Rom 3:8; Ps 69:10; 1 Sam 1:13–15; 2 Sam 10:3; ²⁹Ps 12:2–3; ³⁰2 Tim 3:2; ³¹Lk 18:9, 11; Rom 12:16; 1 Cor 4:6; Acts 12:22; Ex 4:10–14; ³²Job 27:5–6; 4:6; ³³Mt 7:3–5; ³⁴Prov 28:13; 30:20; Gen 3:12–13; Jer 2:35; 2 Kgs 5:25; Gen 4:9; ³⁵Gen 9:22; Prov 25:9–10; ³⁶Ex 23:1; ³⁷Prov 29:12; ³⁸Acts 7:56–57; Job 31:13–14; ³⁹1 Cor 13:5; 1 Tim 6:4; ⁴⁰Num 11:29; Mt 21:15; ⁴¹Ezra 4:12–13; ⁴²Jer 48:27; ⁴³Ps 35:15–16, 21; Mt 27:28–29; ⁴⁴Jude 16; Acts 12:22; ⁴⁵Rom 1:31; 2 Tim 3:3; ⁴⁶1 Sam 2:24; ⁴⁷2 Sam 13:12–13; Prov 5:8–9; 6:33