'Underground' in the Bible

The waters caused it to grow;the underground springs made it tall,directing their rivers all aroundthe place where the tree was plantedand sending their channelsto all the trees of the field.

“This is what the Lord God says: I caused grieving on the day the cedar went down to Sheol. I closed off the underground deep because of it: I held back the rivers of the deep, and its abundant waters were restrained. I made Lebanon mourn on account of it, and all the trees of the field fainted because of it.