'Fig tree' in the Bible

when seeing a fig-tree by the way, he came to it, and finding nothing thereon, but bare leaves, said to it, may you never more bear fruit. and presently the fig-tree withered away.

upon which the disciples said to one another, much surpriz'd, how came the fig-tree to wither away so suddenly?

Jesus answered them, I declare to you, if ye have a full assurance of faith, ye shall not only be able to do this to a fig-tree, but if ye should even say to this mountain, be thou removed, and cast into the sea; it should be done.

this may be illustrated by a comparison taken from a fig-tree: when the branches become tender, and push out their leaves, ye know that summer is nigh: