Then Jesus told them a parable to the effect that they should continue (proseuchesthai | προσεύχεσθαι | pres mid inf ) to (proseuchesthai | προσεύχεσθαι | pres mid inf ) pray (proseuchesthai | προσεύχεσθαι | pres mid inf ) at all times and never give up.
Reference
Luke 18:1
Sequence
34