'Secretly' in the Bible

If thy brother, the son of thy mother, or thy son, or thy daughter, or the wife of thy bosom, or thy friend, that is as thine own soul, entice thee secretly, saying, Let us go and serve other gods, which thou hast not known, thou, nor thy fathers;

and toward her young one that cometh out from between her feet, and toward her children whom she shall bear; for she shall eat them for want of all things secretly, in the siege and in the distress wherewith thine enemy shall distress thee in thy gates.