NET
27 You prove to be reliable to one who is blameless, but you prove to be deceptive to one who is perverse.
Darby
27 With the pure thou dost shew thyself pure; And with the perverse thou dost shew thyself contrary.
KJV
27 With the pure thou wilt shew thyself pure; and with the froward thou wilt shew thyself unsavoury.