'Follow Me' in the Bible

And after these things he went out, and saw a farmer of the taxes, named Levi, sitting at the custom-house: and he said unto him, Follow me.

And he said unto them, If any man will come after me, let him deny himself, and take up his cross daily, and follow me.

And he said to another, Follow me. And he said, Lord, permit me first to return home, and put my father in his grave.

Then Jesus hearing this, said to him, Yet one thing thou lackest: sell all whatsoever thou hast, and distribute to the poor, and thou shalt have treasure in heaven: and come, follow me.