4 occurrences across the corpus

King James Version

1 Peter 3:8

Finally, be ye all of one mind, having compassion one of another, love as brethren, be pitiful, be courteous:

KJV Apocrypha (Catholic Deuterocanon)

Sirach (Ecclesiasticus) 42:14

Better is the churlishness of a man than a courteous woman, a woman, I say, which bringeth shame and reproach.

Apostolic Fathers

Shepherd of Hermas: Similitudes 10:3

Moreover, I sent you these virgins, that they may dwell with you. For I saw that they were courteous to you. You will therefore have them as assistants, that you may be the better able to keep his commands: for it is impossible that these commandments can be observed without these virgins. I see, moreover, that they abide with you willingly; but I will also instruct them not to depart at all from your house: do you only keep your house pure, as they will delight to dwell in a pure abode. For they are pure, and chaste, and industrious, and have all influence with the Lord. Therefore, if they find your house to be pure, they will remain with you; but if any defilement, even a little, befall it, they will immediately withdraw from your house. For these virgins do not at all like any defilement.” I said to him, “I hope, sir, that I will please them, so that they may always be willing to inhabit my house. And as he to whom you entrusted me has no complaint against me, so neither will they have.” He said to the Shepherd, “I see that the servant of God wishes to live, and to keep these commandments, and will place these virgins in a pure habitation.” When he had spoken these words he again delivered me to the Shepherd, and called those virgins, and said to them, “Since I see that you are willing to dwell in his house, I commend him and his house to you, asking that you withdraw not at all from it.” And the virgins heard these words with pleasure.

OT Pseudepigrapha

The Story of Ahikar 2:11

O my son! bend thy head low down, and soften thy voice, and be courteous, and walk in the straight path, and be not foolish. And raise not thy voice when thou laughest for if it were by a loud voice that a house was built, the ass would build many houses every day; and if it were by dint of strength that the plough were driven, the plough would never be removed from under the shoulders of the camels.