Mark 9:19
He answereth him, and saith, O faithless generation, how long shall I be with you? how long shall I suffer you? bring him unto me.
Cross-reference
In Mark 8:12, Jesus sighs over an unbelieving generation seeking signs, matching his exasperation here.
Mark 8:21 has Jesus questioning the disciples' lack of understanding, paralleling his exasperation here with their unbelief.
Mark 16:11 records the disciples' disbelief of the resurrection, echoing the ongoing unbelief Jesus laments here.
Numbers 14:11 has God asking 'How long will they not believe Me?'—directly echoed in Jesus' 'O faithless generation, how long?'
Numbers 14:27 asks 'How long shall I bear with this evil congregation?'—same divine exasperation Jesus expresses with 'how long shall I bear with you?'
Deuteronomy 32:20 calls Israel 'a perverse generation, children in whom is no faith'—the exact phrase Jesus uses in 'faithless generation'.
Psalm 78:8 describes a 'stubborn and rebellious generation' whose spirit was not faithful—echoed in Jesus' lament over this faithless generation.
Matthew 17:17 is the parallel synoptic account of this same event, with Jesus speaking the identical complaint.
Luke 9:41 records the same exclamation from Jesus at this event, providing a parallel synoptic witness.
Hebrews 3:10-12 warns against an 'unbelieving heart' and cites the wilderness generation, directly echoing Jesus' lament.
John 14:9 echoes Jesus' frustration with prolonged presence among faithless disciples, using similar 'how long... with you' language.
In 2 Kings 4:31, Gehazi's failure to revive the boy mirrors the disciples' failure here due to lack of faith.
In Matthew 6:30, Jesus similarly rebukes 'you of little faith' for worrying, connecting to his frustration here.
Matthew 11:20 shows Jesus condemning cities for unbelief, echoing his lament here over an unbelieving generation.