'Secret' in the Bible
When thy brother -- son of thy mother, or thy son, or thy daughter, or the wife of thy bosom, or thy friend who is as thine own soul -- doth move thee, in secret, saying, Let us go and serve other gods -- (which thou hast not known, thou and thy fathers,
Cursed is the man who maketh a graven and molten image, the abomination of Jehovah, work of the hands of an artificer, and hath put it in a secret place, -- and all the people have answered and said, Amen.
Cursed is he who is smiting his neighbour in secret, -- and all the people have said, Amen.
and against her seed which cometh out from between her feet, even against her sons whom she doth bear, for she doth eat them for the lacking of all things in secret, in the siege and in the straitness with which thine enemy doth straiten thee within thy gates.