Expositor's Bible Commentary Commentary Luke 18:8

"I say unto you, that he will avenge them speedily. Nevertheless, when the Son of man cometh, shall he find faith on the earth?" — Luke 18:8 (ASV)

Help is on the way, and the delay will prove shorter than it seems from our perspective. True believers who persistently wait with patient trust will seem few when the Son of Man comes (cf. vv.24–25).