'Wheat' in the Bible

Whose fan is in his hand, and he will throughly purge his floor, and gather his wheat into the garner; but he will burn up the chaff with unquenchable fire.

At that time Jesus went through the grain fields on a Sabbath. His disciples were hungry, and they began to pick heads of wheat and eat them.

But while men slept, his enemy came and sowed tares among the wheat, and went his way.

But when the wheat sprouted and bore grain, then the tares became evident also.

But he said, Nay; lest while ye gather up the tares, ye root up also the wheat with them.

Let both grow together until the harvest: and in the time of harvest I will say to the reapers, Gather ye together first the tares, and bind them in bundles to burn them: but gather the wheat into my barn.

He told them another parable: "The kingdom of heaven is like yeast that a woman took [and] put into three measures of wheat flour until the whole [batch] was leavened."

So just as the weeds are gathered up and burned in the fire, so will it be at the end of the age.