25 To the faithful you show yourself faithful, to the blameless you show yourself blameless,

Read Psalm 18:25 Using Other Translations

With the merciful thou wilt shew thyself merciful; with an upright man thou wilt shew thyself upright;
With the merciful you show yourself merciful; with the blameless man you show yourself blameless;
To the faithful you show yourself faithful; to those with integrity you show integrity.