'Root' in the Bible

And already the axe is lying at the root of the trees, so that every tree which does not produce good fruit will quickly be hewn down and thrown into the fire.

but when the sun is risen, it is scorched by the heat, and through having no root it withers up.

It has struck no root, however, within him. He continues for a time, but when suffering comes, or persecution, because of the Message, he at once stumbles and falls.

"'No,' he replied, 'for fear that while collecting the darnel you should at the same time root up the wheat with it.