Mark 3:4
And he saith unto them, Is it lawful to do good on the sabbath days, or to do evil? to save life, or to kill? But they held their peace.
Cross-reference
In Mark 2:27, Jesus teaches the Sabbath was made for man — this principle underlies his question about doing good on the Sabbath here.
In Mark 2:28, Jesus declares the Son of Man is Lord of the Sabbath — directly supporting his authority to heal on the Sabbath here.
In Hosea 6:6, God desires mercy over sacrifice — this OT principle aligns with Jesus' priority of doing good over Sabbath rules.
In Matthew 12:10-12, the same event is recorded with added detail about rescuing a sheep on the Sabbath — reinforcing the 'doing good' argument.
In Luke 6:9, the parallel account records Jesus' identical question about doing good or harm on the Sabbath — confirming the narrative.
In Luke 13:13-17, Jesus heals a crippled woman on the Sabbath — another example of his consistent teaching that mercy outweighs Sabbath restrictions.
In Luke 14:1-5, Jesus heals a man with dropsy on the Sabbath — similarly arguing that healing is lawful, reinforcing the same principle.
Matthew 12:12 gives the same Sabbath principle: doing good is lawful. This is a direct parallel account of the same event.
Luke 14:3 records a similar Sabbath question about healing, reinforcing Jesus' consistent teaching on lawful mercy.
John 7:19 exposes the irony: they condemn healing but plot murder, contrasting their professed law-keeping with murderous intent.
John 5:10 shows another Sabbath controversy where opponents focus on rule-breaking rather than the healing itself.