“The Parable of the Sower.” Perhaps it should be more accurately referred to as, “The Parable of the Soil.” It is also in Matthew 13:3-9 and Luke 8:5-8. See commentary on Matthew 13:3.
“Listen!” The Greek is akouō (#191 ἀκούω), which means to hear, to listen, or to understand, and it is in the imperative mood. Coupled with idou (“Pay attention!) it is an extremely powerful way to say that we better pay attention to what Jesus is saying in the parable.
“Pay attention!” The Greek word is idou (#2400 ἰδού), and it is used to get our attention. See commentary on Matthew 1:20 (“Look!).