11 “Ask the LORD your God for a sign, whether in the deepest depths or in the highest heights.”

Read Isaiah 7:11 Using Other Translations

Ask thee a sign of the LORD thy God; ask it either in the depth, or in the height above.
"Ask a sign of the LORD your God; let it be deep as Sheol or high as heaven."
“Ask the LORD your God for a sign of confirmation, Ahaz. Make it as difficult as you want—as high as heaven or as deep as the place of the dead. ”