4 occurrences across the corpus

KJV Apocrypha (Catholic Deuterocanon)

Sirach (Ecclesiasticus) 19:8

Whether it be to friend or foe, talk not of other mens lives; and if thou canst without offence, reveal them not.

Jubilees

Jubilees 37:19

may slay his adversary and foe. And thou dost hate me and my children for ever. And there is

OT Pseudepigrapha

The First Book of Adam and Eve 45:5

Again said God unto him, "See, O Adam, how Satan has exalted thee! He has deprived thee of the Godhead, and of an exalted state like unto Me, and has not kept his word to thee; but, after all, is become thy foe. It is he who made this fire in which he meant to burn thee and Eve.

The Story of Ahikar 2:27

O my son! walk not on the road without weapons, for thou knowest not when the foe may meet thee, so that thou mayst be ready for him.