secretly

Deuteronomy 13:6
If your very own brother, or your son or daughter, or the wife you embrace, or your closest friend secretly entices you, saying, "Let us go and worship other gods" (which neither you nor your fathers have known,

Deuteronomy 27:15
Cursed is the man who makes a carved idol or molten image--which is detestable to the LORD, the work of the hands of a craftsman--and sets it up in secret.' And let all the people say, 'Amen!'

Job 31:27
so that my heart was secretly enticed and my hand threw a kiss from my mouth,

Ezekiel 8:12
"Son of man, " He said to me, "do you see what the elders of the house of Israel are doing in the darkness, each at the shrine of his own idol? For they are saying, 'The LORD does not see us; the LORD has forsaken the land.'"

from the tower

2 Kings 18:8
He defeated the Philistines as far as Gaza and its borders, from watchtower to fortified city.

Hosea 12:11
Is there iniquity in Gilead? They will surely come to nothing. Do they sacrifice bulls in Gilgal? Indeed, their altars will be heaps of stones in the furrows of the field.