NASB 1995
Now He was telling them a parable to show that at all times they ought to pray and not to lose heart,

American Standard Version
And he spake a parable unto them to the end that they ought always to pray, and not to faint;

Berean Study Bible
Then Jesus told them a parable about their need to pray at all times and not lose heart:

Douay-Rheims Bible
AND he spoke also a parable to them, that we ought always to pray, and not to faint,

English Revised Version
And he spake a parable unto them to the end that they ought always to pray, and not to faint;

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

World English Bible
He also spoke a parable to them that they must always pray, and not give up,

Young's Literal Translation
And he spake also a simile to them, that it behoveth us always to pray, and not to faint,

Luke 18:1 Additional Translations ...