1 Here καί (kai) has been translated as “then” to indicate the implied sequence of events within the narrative.
2 Grk “he”; the referent (Jesus) has been specified in the translation for clarity.
3 Or “should pray at all times” (L&N 67.88).
4 This is one of the few parables that comes with an explanation at the start: … they should always pray and not lose heart. It is part of Luke’s goal in encouraging Theophilus (1:4).

In other versions

And he told them a parable to the effect that they ought always to pray and not lose heart.

Then Jesus told his disciples a parable to show them that they should always pray and not give up.

Now he told them a parable on the need for them to pray always and not give up.

One day Jesus told his disciples a story to show that they should always pray and never give up.

And he told them a parable to show that they must always pray and not be discouraged,

And he spake a parable unto them to this end, that men ought always to pray, and not to faint;

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