And of course some of us might prefer 'endurance' for various reasons and might also prefer to just stick with what Jesus specifically states 'holds fast and bears fruit in endurance'.The silent part, if you will, is the target meaning that Jesus intended. Luke 8:11-15 In that passage, Jesus interprets the parable, and from his interpretation, we learn that the target meaning is perseverance unto salvation.
Next layer(s), dealing with 'believing" & "salvation" from 8:12.