Baptist Catechism Q 75-77

Q 75. Which is the seventh commandment?
A. The seventh commandment is, Thou shalt not commit adultery (Ex. 20:14).

Q 76. What is required in the seventh commandment?
A. The seventh commandment requireth the preservation of our own and our neighbors chastity, in heart, speech, and behavior (1 Cor. 7:2, 3, 5, 34, 36; Col. 4:6; 1 Pet. 3:2).

Q 77. What is forbidden in the seventh commandment?
A. The seventh commandment forbiddeth all unchaste thoughts, words, and actions (Mt. 15:19, 5:28; Eph. 5:3, 4).