'Secret' in the Bible

‘Cursed is the man who makes an idol or a molten image, an abomination to the Lord, the work of the hands of the craftsman, and sets it up in secret.’ And all the people shall answer and say, ‘Amen.’

‘Cursed is he who strikes his neighbor in secret.’ And all the people shall say, ‘Amen.’

“The secret things belong to the Lord our God, but the things revealed belong to us and to our sons forever, that we may observe all the words of this law.