New International Version
Woe to those who go to great depths to hide their plans from the LORD, who do their work in darkness and think, "Who sees us? Who will know?"

American Standard Version
Woe unto them that hide deep their counsel from Jehovah, and whose works are in the dark, and that say, Who seeth us? and who knoweth us?

Berean Study Bible
Woe to those who dig deep to hide their plans from the LORD. In darkness they do their works and say, “Who sees us, and who will know?”

Douay-Rheims Bible
Woe to you that are deep of heart, to hide your counsel from the Lord: and their works are in the dark, and they say: Who seeth us, and who knoweth us?

English Revised Version
Woe unto them that seek deep to hide their counsel from the LORD, and their works are in the dark, and they say, Who seeth us? and who knoweth us?

King James Bible
Woe unto them that seek deep to hide their counsel from the LORD, and their works are in the dark, and they say, Who seeth us? and who knoweth us?

World English Bible
Woe to those who deeply hide their counsel from Yahweh, and whose works are in the dark, and who say, "Who sees us?" and "Who knows us?"

Young's Literal Translation
Woe to those going deep from Jehovah to hide counsel, And whose works have been in darkness. And they say, 'Who is seeing us? And who is knowing us?'

Isaiah 29:15 Additional Translations ...