πολλοὶ γάρ εἰσιν κλητοὶ ὀλίγοι δὲ ἐκλεκτοί → many are called, but few are chosen
ὁποῖος, ὁπποῖος, ὁκοῖος, ὁπόστος, πόστος, πότερος, κότερος