John 9:33
If this man were not of God, he could do nothing.
Cross-reference
John 9:16
Historical context
John 9:16 shows the Pharisees divided about Jesus' origin; John 9:33 is the healed man's conclusion that He must be from God to do such works.
John 3:2
Parallel
John 3:2 has Nicodemus say no one can do these signs unless God is with him — exactly the logic of John 9:33 that Jesus must be from God.
Acts 5:39
Parallel
Acts 5:39 says if it is of God it cannot be overthrown; John 9:33 asserts Jesus is from God because of the miracle.
Acts 2:22
Parallel
Acts 2:22 confirms Jesus' works as signs from God, supporting the healed man's logic that miracles prove divine origin.
Acts 5:38
Parallel
Acts 5:38 applies similar reasoning: if a work is of men it will fail; John 9:33 argues Jesus' works prove He is from God.