'Secret' in the Bible

LORD, they came to you in distress; they poured out their secret prayer when your chastenings were afflicting them.

I'll give you concealed treasures and riches hidden in secret places, so that you'll know that it is I, the LORD, the God of Israel, who calls you by name.

I didn't speak in secret, from somewhere in a land of darkness; I didn't say to Jacob's descendants, "Seek me in chaos.' I, the LORD, speak truth, declaring what is right.

Draw near to me, and listen to this: "From the beginning I haven't spoken in secret; at the time it happened, I was there.' And now the LORD God, and his Spirit, has sent me.

who sit among graves, and spend the night in secret places; who eat pigs' meat, with the broth of detestable things in their pots;