Psalms 18:25
King James Version (KJV)
With the merciful thou wilt shew thyself merciful; with an upright man thou wilt shew thyself upright;
American Standard Version (ASV)
With the merciful thou wilt show thyself merciful; With the perfect man thou wilt show thyself perfect;
World English Bible (WEB)
With the merciful you will show yourself merciful. With the perfect man, you will show yourself perfect.